I have a friend who uses FF on HSBC, Have you tried making it identify as IE? Some sites (wrongly) check what browser an do funny stuff when actually there is no reason to mess about at all.
As for slider/wheel, thats a config issue of your PC, not of the browser.
Please make sure you are 'blaming' the right thing. IE 7 is trying to catch up, why not try it, its available for public download? I have actually found Microsoft sites that don't work properly in IE7. Perhaps they stick to teh rules more
