Absolutly no idea if this helps anyone but:
If one has Flip4Mac installed, open the WMV in Quicktime.
File -> Save As -> Self Contained Movie File.
This will give you a '.mov' file that iTunes will happily import, I have no idea if it will work on an iPod or not *shrugs*.
I don't like WMV files, but then again I don't like a huge ammount of things
However I know I do like getting nice vid's from ThemeParkReview, thanks guys.