updating problem

I’ve had a wordpress blog on my site for a couple years now and I don’t think I have ever updated. On reading the recent story about a security issue I figured I better update.

I’m not sure what version I was using. It was 2.2 maybe?

Anyways, I was stupid. Mea culpa. I found a website that gave this update advice “if you haven’t updated to 2.8.3 yet), or download the new release from the download page and upgrade manually, overwriting your current install with the new files.”

My version of WP didn’t have an update button, so I downloaded the new version and overwrote my current install with the new files.

And that didn’t work. I’m afraid I totally fubared my blog, didn’t I?

Is there anything I can do to salvage anything? Is it possible I just need to modify a some files and have everything working again?

Thanks for any help anybody can give me.