Help with upgrade, please!

[digidiva-kathy]

I know, it was stupid, but I did an upgrade on a live store with a new ftp client and it apparently deleted my config files. So, I created them again, changed all the permissions back (stupid ftp client also uploaded all new folders with new permissions instead of old ones) and I thought I was ready to go, but I'm not positive. This is what I see:

Previous Zen Cart Installation Found
However, the version level of your database cannot be determined, usually resulting from wrong table prefixes, or other database settings mismatches.

CAUTION: Only use the Upgrade option if you are sure your configure.php settings are correct.

It's been a while so I can't remember exactly what I should have to choose from, but I thought I used to have an option to upgrade only. I don't have that option now, I have install, upgrade cfg files and re-check.

Help? Please?

[Pixxi]

Have you checked to see if the prefix on your database tables match the prefix setting in your config files?