I assume you have a PAL speedup vhs.

If the speed of the audio is different on the VHS audio to that of the new cleaned versions of the film you will have to conform the audio from the VHS to the new release.

Rip the audio from the new release and put both audio files in audacity.

You will have to change the speed most likely of the VHS to that of the new release. You must get them now to match up pretty much exactly.

Look in the how to sections here about conerting PAl speed to NTSC or what ever frame rate the new version is. You basically need to synch them up then you can put it on the video.