first off Mascot,
what kind of a bot are you looking for?? an eggdrop , windrop or a mirc bot?
this is primarly a mirc help site but i'll give ya this info:
eggdrops are ideal for what you want, unfortunatly they require an additional service to run ( a shell ), you can get more info on them here EggHeads.org
windrops basicly work the same as eggdrops but run locally on a windows based machine ( no extra service needed ) and sorry i can't remeber what the web address is for their site off the top of my head but, you can search it if interested.
mircbots are scripts probally like the one your currently using and can be found on several sites such as : MircScripts.org Hawkee.com
you should be able to find what you looking no matter which way you choose to go ..........