Sorry bout the subject title....but help is soooo boring

My IE is ill, it's very sick indeed in fact I think it's on it's last legs

I can't click it, when I right click it, four freaky looking icons apppear

on my desktop, with names like 'o' or c45320

Msn has disappeared, it used to be my home page, can't get it back

Lycos has made an appearence  along with other gate crashers

why is this message double spaced  I used to have IE 5.0 then

downloaded the new version as my puter will only repair

any way hope someone here can help me with my little problem

perhaps a link

and btw wot are cookies? should I get rid o them? and how would

I go about that