There are several version of Outlook as well as oodles of cellphones. So
several times oodles equals all of the possibles answers. In short - ALOT.
The best bet is to go to the manufacturer of your cell phone and see what
their site says about Outlook syncing. One glimmer of hope I can give you is
that if you have a USB or serial port on your phone the process will
probably be pretty easy.
Good luck and I hope you get it working. I could not live without it