k so i have crossover game demo on my mac

i got crossover games for it and got steam
then i bought Half-Life (1) for it and played it for LOTS AND LOTS OF TIME
Okay well my crossover trial is up and i need to find a way to transfer my files over to my lame PC (W/ XP) cause there is no way i want to lose all of those pecious files!!!! cause im really far and really dont have the time to re-do everything

Soooo How can i Transfer my games saves???? to my PC??? (note crossover is still running and as long as i dont close it can keep using it.)