Roll over drop down menu's

good gravy there has to be some outthere that do not cost an arm and a leg
http://operator.net-tech.us/website-devel/MayanPigments/ is what I have, I tried to use the son of suckerfish drop down (http://www.htmldog.com/articles/suckerfish/dropdowns/) but for what ever reason it does not work in Mozilla and or Firefox
ideas/help oh great interweb?