I know next to nothing about CreateaForum but do you have the web files and sql file? If not, it appears you can pay them for a backup.
Then just try to upload the files, insert the sql file and edit the config file and see if that works.
I did a quick look at their support forum for any references to moving to another server and there wasn't a single post. Google didn't yield any results either. Honestly, it looks like a hostage situation. I think they might not want their software installed anywhere else.