I have recently installed ie7 on my windows 2003 machine, its a major release of ie7 which has changed microsoft as a company.. it has lots of new and exciting featues, better ajax support, inbuilt RSS and ATOM feed reader, it is very good at blocking spyware, adware and other nonsense stuff that downloads on your machine when you surf porn and sexually oriented websites.
the best feature of all in ie7 is it has enabled tabbed browsing, so in 1 window I can have hundreds of windows open so my desktop does not get cluttered a very exiting feature in ie7 is quicktabs, when you click CTRL + Q you see thumbnails of all the webpages that are open so you need not go and check each and every tab to find the information. it also supports lots of extensions, it has a buildin spam and phising detecting feature that makes sure all the crack sites, fake sites are flagged and you are notified about it, the address bar color changes,
ie7 is first browser from microsoft which is compatible with a lot of open formats, in terms of CSS, XHTML, etc
the only downfall is you need to have a activated and a original copy of windows to install ie7. well you can still get it done, its easy though.. haha.. ok to conclude.. its better than firefox in memory management, better than opera in terms of showing off ajax and rest is you can have addons you can download and use them. many use ful tools availiable .. you can try it now..
Amaan