I'm supposed to put it in the minecraft.jar? I just put it in the mods folder..
Also I went to redownload it and the website is down.. Want a referral to dropbox for some free space? I've been using dropbox for half a year now with atleast 30 maps, 120 pictures, and a bunch of schoolwork with still only18.1% used (556.9MB of 3GB)of my dropbox space used. PM if you're interested because dropbox is never down.
Sorry the server was down for you, All I know is Its up right now.
And yes - thats your problem: you need to put the files in minecraft.jar becuase modloader only add NEW files (nealry all of them), but it doesnt overwrite OLD files (the dispenser blick file / cu.class), so to solve it just open minecraft.jar and shove all the files in there, becuase you might also get crashes or glitches in ThrowCraft servers becuase of that file lacking.