upgrading ubuntu

[michael weaver]

i looked at the instructions for upgrading from hardy or karmic 
to lucid and it states to do an upgrade do alt plus f2, 
update-manager dash d, enter and follow the instructions to do a 
desktop upgrade.
i looked at the instructions i typed and i think the sudo 
do-upgrade-release dash d does a server upgrade which might have 
been the reason why my attepts to upgrade crash.
if i am going to have to do any upgrade via the up-date manager, 
after i have typed my password after chosing the ok button to 
upgrade, do i need to press space or enter again after i have 
been asked for my password and okayed the password as i am 
assuming that it doesn't start straight away after doing okay 
after typing my admin password.
i am guessing that after entering or spacing on okay to accept my 
password i need to find the actual button to start the upgrade.  
is the button that starts the actual upgrade the default button 
in the dialogue box which is unaccessible because of the sudo 
problem or how many times do i need to press tab before i can 
accept and beginn my upgrade?