Upgrading from 2.x to 2.6.1

I admit it, I am a bad person. I am a foolish person. I let my wordpress install lag behind on leekworld. I encountered a bit of a bug all of a sudden with advanced-cache, and decided to upgrade rather than work around it – I was on WordPress 2.2. Utter disaster.  I tried all sorts, but the upgrades just wouldn’t take.  I reconfigured my wp-config file to have all the post 2.5 stuff but it just wasn’t having it. I’ve lost the Qwilm! theme as well. I loved that theme. I had tinkered with it and it made me happy.  I think I may have to make a new one just like it. This one’s just plain vanilla right…