Ineternrt Explorer problems?

Question

I have same problems with IE(7) - first of all javasccript doesnt work(I know how to active and desactive it and where).When i saw that problem I simply download Firefox , but some programs depends of IE(some system prog and some no system), for exemple when I try search(start-search) it says that cant found the searcher file , when I try to access to some options in control panel it says Internet Explorer script error, the same happens when I try to purchase a game from PC or look property of page (right click- proprety).
How can i solution this problem?Help me please,thanks

P.D I already tried to reinstall IE7 , but I dont see any changes

the problem is that some system programs doesnt work with firefox , for this I trying to repair IE ;
and i ll try to install IE6

Answer 1

Try going back to IE6 for a while

Answer 2

Internet Explorer IS a problem
try Firefox