1. right which is why I asked what is the difference between both of these databases as there has to be a difference if it was working before
2. That buttons fine and performs fine. The people that do as you did jumped the gun when you saw all photos missing. You first need to make sure any server paths are correct etc before you go running things. I mean nothing is going to work on your gallery if your settings are wrong.
Thats why I linked that thread
If you want me to take a look at your russian thing you would need to send through the contact us link an admin login url and ftp info.