@ alex9193,
To answer questions 1&2...
You need to convert the entire main.php file over to your new languages and not just what was part of my mod.
I am reusing lang variables that are further up that file as to not overload memory having the same words created twice...
look up the main.php file for things like "yes" "no" "abort" ,ect... That is why you are seeing russian because if the multilang mod does not see the associated word in the new language file it is using, it uses the original one that is in the default settings of 4images.
Question 3 is harder,
The multilanguage mod you are using places a l=whateverlanguage at the end of every link. My mod does not incorporate that into any of it's links, that is why it defaults back to the default language when you click on any of the links. It would have been nicer if that mod passed a session variable instead of adding to the link.
I think V@no created that mod, you may ask him on that mods posing to see if there is an easy fix to add multilang to this mod. I think I would have to go through and modify almost all the code to get it in there and then people that are not using the multilang will not work.
Will have to think about that one awhile, If I come up with anything I will post it for you, or if V@no chimes in with a path for me to take then I may be able to move forward with it. But right now, I can not think of a way to put it in easy and still make it compatible for people not using that mod.
If I get time this week, I will try to place that mod on my test site and see what I can do, must no promises...
If you can zip and send me language files you are using so I will not have to create the different languages, that would help out allot.
Playing around on your site, I did notice two words that are in my templates that are not in the language file
"UPLOAD:" and "URL:" and then the button you click for browsing for files is also in English but I do not think I can do anything about that one.