To play on other people's servers you don't need to download anything. See here:
http://www.eqemulator.net/forums/viewtopic.php?t=14010
After step 3, start/run/cmd, cd to your eq directory and type eqgame patchme, or use eqw 2.41 and deselect the 'run patcher' option, then continue from step 4.