Problems loading driver for external antenna

[John Everard]

Because of weak WiFi signal I need to use an external antenna (GSI USB Wireless WiFi long range network adapter), which comes with an installation disk including drivers for both Windows and Linux but instructions for Windows only.  In the Linux package there is a Read-me file which gives the following instructions for installation.  The disk includes the suite of files called ./makedrv etc to which the instructions below seem to refer.  But try as I might I can't work out what actually to do with these instructions.  I have tried entering the scripts in the terminal but that does not seem to work.  Would anybody please be able to help me load this driver, explaining what keys I need to press where?  I am very new to Ubuntu.  
Many thanks in advance!

READ ME FILE BEGINS
Release Date: 2006-02-09, ver 1.2RTL8187 Linux driver version 1.2
   --This driver supports RealTek RTL8187 Wireless LAN driver for      Fedora Core 2/3/4/5, Debian 3.1, Mandrake 10.2/Mandriva 2006,      SUSE 9.3/10.1/10.2, Gentoo 3.1, etc.   - Support Client mode for either infrastructure or adhoc mode   - Support WEP and WPAPSK connection
< Component >The driver is composed of several parts:	1. Module source code	  stack.tar.gz	  drv.tar.gz		2. Script ot build the modules	  makedrv
	3. Script to load/unload modules	  wlan0up	  wlan0down 
	4. Script and configuration for DHCP 	  wlan0dhcp	  ifcfg-wlan0	4. Supplicant source code:	  wpa_supplicant-0.4.9.tar.gz
	5. Example of supplicant configuration file:	  wpa1.conf
< Installation >Runing the scripts can finish all operations of building up modules from the source code and start the nic.	1. Build up the drivers from the source code	  ./makedrv
	2. load the driver module to kernel and start up nic	  ./wlan0up
< Set wireless lan MIBs >This driver uses Wireless Extension as an interface allowing you to setWireless LAN specific parameters.
Current driver supports "iwlist" to show the device status of nic        iwlist wlan0 [parameters]where        parameter explaination      	[parameters]            -----------------------     	-------------           Show available chan and freq	freq / channel          Show and Scan BSS and IBSS 	scan[ning]                  Show supported bit-rate         rate / bit[rate]                Show Power Management mode      power             
For example:	iwlist wlan0 channel	iwlist wlan0 scan	iwlist wlan0 rate	iwlist wlan0 power
Driver also supports "iwconfig", manipulate driver private ioctls, to setMIBs.
	iwconfig wlan0 [parameters] [val]where	parameter explaination      [parameters]        [val] constraints        -----------------------     -------------        ------------------        Connect to AP by address    ap              	[mac_addr]        Set the essid, join (I)BSS  essid             	[essid]        Set operation mode          mode                {Managed|Ad-hoc}        Set keys and security mode  key/enc[ryption]    {N|open|restricted|off}
For example:	iwconfig wlan0 ap XX:XX:XX:XX:XX:XX	iwconfig wlan0 essid "ap_name"	iwconfig wlan0 mode Ad-hoc	iwconfig wlan0 mode essid "name" mode Ad-hoc	iwconfig wlan0 key 0123456789 [2] open	iwconfig wlan0 key off	iwconfig wlan0 key restricted [3] 0123456789
< Getting IP address >After start up the nic, the network needs to obtain an IP address beforetransmit/receive data.This can be done by setting the static IP via "ifconfig wlan0 IP_ADDRESS"command, or using DHCP.
If using DHCP, setting steps is as below:	(1)connect to an AP via "iwconfig" settings		iwconfig wlan0 essid [name]	or		iwconfig wlan0 ap XX:XX:XX:XX:XX:XX
	(2)run the script which run the dhclient		./wlan0dhcp           or 		dhcpcd wlan0              	(Some network admins require that you use the              	hostname and domainname provided by the DHCP server.              	In that case, use 		dhcpcd -HD wlan0)		< WPAPSK >WPA_SUPPLICANT help the network to communicate under the protection of WPAPSKmechanism		(1)Unpack source code of WPA supplicant:	  tar -zxvf wpa_supplicant-0.4.9.tar.gz	  cd wpa_supplicant-0.4.9		(2)Create .config file:	  cp defconfig .config		(3)Edit .config file, uncomment the following line:	  #CONFIG_DRIVER_IPW=y.			(4)Build WPA supplicant:	  make	If make error for lack of <include/md5.h>, install the openssl lib(two ways):	 1. Install the openssl lib from corresponding installation disc:	    Fedora Core 2/3/4/5(openssl-0.9.71x-xx), Mandrake10.2/Mandriva10.2(openssl-0.9.7x-xmdk),	    Debian 3.1(libssl-dev), Suse 9.3/10.0/10.1(openssl_devl), Gentoo(dev-libs/openssl), etc.	 2. Download the openssl open source package from www.openssl.org, build and install it.	 	(5)Edit wpa_supplicant.conf to set up SSID and its passphrase.	  For example, the following setting in "wpa1.conf" means SSID           to join is "BufAG54_Ch6" and its passphrase is "87654321".	  network={			ssid="BufAG54_Ch6"			proto=WPA			key_mgmt=WPA-PSK			pairwise=CCMP TKIP			group=CCMP TKIP WEP104 WEP40			psk="87654321"			priority=2		  }
	(6)Execute WPA supplicant (Assume 8187 and related modules had been           loaded):	  ./wpa_supplicant -D ipw -c wpa1.conf -i wlan0 &
READ-ME FILE ENDS

 		 	   		  
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