At cs.ne they've slapped up an e-mail from goose. Turns out the aimbot won't work in 1.2, as they'll be locking models. Don't worry, Billy it will be a server side option. Here's what CS @ PHL reports from Gooseman:
CS 1.2 will have a server side switch that will prevent custom skins/models from being used (only for the player models and the 3rd person weapon models). This method has been used in Front Line Force to stop the aimbot and so far it's worked for FLF. It's a shame we had to resort to this but there was really no other way to stop the aimbot other than locking the skins.Woohoo!