The Rockman Anime Music Video Station

hey guys thanks but... the thing is that i can't disable codecs in WMM, i HAD the 2.1 WMM version but i installed 2.0 and lost the 2.1 version and i can't download the 2.1 version anywhere! because all the links are to the service pack 2 thingy...
PD: i uninstalled the codecs and now i can work with WMV but i can't with AVI i won't convert all the 40 episodes of sonic underground to WMV, it'd take like a MONTH

Service Pack 2 should come with Movie Maker 2.1

I recently installed my version of Windows XP Pro SP2 (Service Pack 2) and it had 2.1 already on it.