Thank goodness I found this solution. I was worried I couldn't install my printer again after reinstalling my computer. *phew*
1) Download and extract the latest HP Laserjet 1000 XP drivers (dated 2005)
( automatically extracted to c:\lj1000hb )
2) Then go to... Start /Control Panel /printers .... then Add a Printer
3) A new window comes up ...Next select.... Add a local Printer
4) Then check "Use an existing port" and on the right there is an option to choose a port. Choose "USB001 (Virtual printer port for USB)"
5) On next window choose HP laserjet 1000 (if in list) or choose disk if not and browse to the files (only browse if the HP lj 1000 is NOT in the list.)
and follow the rest.
Download Driver: here
source: http://social.technet.microsoft.com/Forums/en/itprovistaprinting/thread/99439e0e-5582-40d9-b04b-27f15eb89aca