Yes - vBET rewrites URLs to keep translation tracking.
If you cannot contact with author of 2nd mod, we will support you. Just please keep in mind that our customers - users of paid version have always priority. Hope that you can understand it and that it is acceptable, because you will get out support free anyway.
Kamil will handle it in free time. Please PM him access details for your Admin CP and FTP. Also please note that he will not be able to start working on this issue this week.