I've had a CD-ROM in the past for Worms 2 but I unfortunately lost it.
So I'm trying to buy a new one but now I have a different computer, a Windows Vista.

So will worms 2 work on Vista?

Will there be any glitches, or any faults in the game if it does?

It works fine for me, but there have been reports of VIsta incompatibilities. The only problem I ever had with the game was that it refused to render the water properly (the surface was fine, but everything below the surface was coloured black). A simple update of my graphics card drivers solved that problem.