wireless driver

[Doug Pollard]

I have an older 933mghz Dell that I have Ubuntu8.04 running in.  I want 
it out in my shop. I bought an Encore wireless card and downloaded   a 
driver from their sight that is in a tarball.  I have been using Ubuntu 
several years but have  not  had any luck installing tarballs.  It's 
been a while  since I have tried and I have a little more knowhow with 
linux now.   I have been Googleing with some success for help but i 
thought someone might have a good sight to help me with this.     
Thanks, Doug