Chage mod rewrite

[inigo]

Hello,

I'm trying to find out how you can change the vbulletin modrewrite suite of v4.
The system is already integrated, but I want to do is an import from another forum and I keep the old system when you enter the url.
Basically the rewrite that brings vb suite is:
12-name-of-post
and what I want is
name-of-post-v12.html

but not where I can modify, as both the php. htacces.

regards