i want Runescape Client to be look exactly like in firefox with Adblock Plus enabled.

 

i used iframe{display:none} but only the homepage ads is removed, the game page top section is still there.

 

what css that need to be insert into IE so that Runescape Client will not include the whole top section, including 'home', upgrade to member', search'.

that it will look like almost full screen?

You'll notice that the frame on the main Runescape game page (at least on the Signed version), links to a webpage like so :- http://world36.runescape.com/m0

 

If you view the source of this page, you'll see that you're wanting to remove the 'menubox' element from the page to remove what you're speaking of.

 

Removing that gives the following effect, which I presume is what you're after :-

 

[spoiler=Image]

 

Removing ads when you are not a member is against the rules, and can get you in trouble, so don't do that.

 

I guess the menubar at the top can be a nuisance...

 

#menubar { display:none; }