no no no...
I've never used jumpers with SATA drives...
you need to assign a drive letter and path. are you using xp or windows 7?
in win7 go... control panel > administrative tools > computer managment > storage > disk management.. Find your HD in the list on the bottom half of the window, If it is already partitioned, just right click, and choose assign drive letter and path. Then, follow the wizard..
yea