smorizio :
did you format the old hard drive?? if not and the old os is still there just go into the bios and switch the boot deviced to the old hard drive. as long as windows is still on the old hard drive the files should still be there. if you did format or delete files from the old hard drive there is a software program that might be able to recover it.
http://www.piriform.com/recuva
thanks for that link, i didnt remove any windows files of any kind but when i go in the bios it doesnt show my other HDD as a bootable device :S only shows my floppy drive and my ssd.
also it seems that anything installed on my HDD isnt recognize by my SSD, for example, Bittorrent was installed on my HDD but i had to reinstall it on my SSD otherwise it wouldnt work, same for battlefield 3 and such :S