OK, so I tried to do an upgrade after I saw my blog had been overrun by spam comments. I saved both blog directories onto my computer as backup and went for an upgrade.
It didn't work and so I'm pondering just doing a clean install and then creating new stories and copying and pasting the entries. However, I have no idea how to locate the entries in the stuff I backed up. I can't find any of the articles inside these folders.
I'm not very good with code, so please forgive me-