[eluser]Majd Taby[/eluser]
ocergyNohtna, you won't see anything echo'd in the hooks because the page gets redirected after processing is done. show_error() calls exit() so it stops execution before the redirect.
to help you find the changes you made, here's what I would do:
1) checkout that revision from the svn repo.
2) copy/paste your files into the checkout
3) use `svn status` to view all the changes.
If you need help finding the RC you're using, you can zip it up and send it to me.
daulex, here's how upload_path works: it's relative to your backend.php file. If you want to start writing the path from there, you add a dot before. So in your case, I would try upload_path: ./system/up/ Alternatively, you can specify a full path to the upload directory.