Well,
First question is what was your version before you uploaded 7.5.6p2.
Second question is did you exclude all the special folders for upgrading?
The reason I ask is there may not be a need to run the upgrade script.
So you may be able to recover from it fairly easy.
I don't know what your dbase error is though.
Unless you uploaded all the files and overwrote some files you should not have. Like config.inc.php.
I hope you have a backup of your files from before?
The dbase probably is okay.
Last question is did you run upgrade.php or actually install.php.
Last edited by Ruben; 03/06/2012 4:55 PM. Reason: Added Comment