Well we didn't even have the original vhs tape,only a digitised file.
I was helped by someone more experienced in digital video manipulation,he showed me which filters were best to be applied.
It doesn't sound so hard but I was already working on it for 2 weeks when he helped me out,problem was introduction of noise and pixellation by the filters.
Cleaned up version got out through the usual sources and several pairs of subs (in different languages) were even made for it.
This was the best version back then.
1 original material 2008 / 2 cleaned up version 2010 / 3 dvd version 2014