Synced and lost all my contacts! :(

[Cicatrize]

Last night, I reformatted my computer and reinstalled Vista. I wanted to sync my contacts from my phone into my computer, so I hooked it up, and it didn't work. I had forgotten to install Office 2003, so I guess that may have been a problem. But when I looked on my phone, ALL of my contacts were gone. Is there some way to get them back, or am I screwed? I had a lot of important numbers in there that I don't have stored elsewhere.