Whichever alternative browser you try, you must be sure to disable as many of the vulnerable features in IE as you can. This is because IE is so integrated into your OS that it remains vulnerable even when not in use.
This is an old article about securing IE, so it doesn't take into account any of the changes made by SP2, but, as the most recent exploits make clear, having things like cross domain scripting or ActiveX enabled is still inadvisable;https://netfiles.uiuc.edu/ehowes/www/btw/ie/ie-opts.htm
This is an old article about securing IE, so it doesn't take into account any of the changes made by SP2, but, as the most recent exploits make clear, having things like cross domain scripting or ActiveX enabled is still inadvisable;https://netfiles.uiuc.edu/ehowes/www/btw/ie/ie-opts.htm