Ok.... I just bought the Generations pack.... all installed... and the following patches came with the cds:

half life 1.1.0.6
half life 1.1.0.8
oposing force 1.1.0.8
and
counterstrike 1.0.0.3


I'm in the middle of downloading the counterstrike 1.0.0.5 patch (116megs)

so my half life is @ version 1.1.0.8
and my cs will be @ version 1.0.0.5

what else do i need?