no. Internet explorer is only for windows. I think there is a version of it for mac. iOS does not have any support for internet explorer. the default browser is Safari. I personally use iChromy.
In addition to Safari, I have Atomic Web on my iPad2 - just connected to APOnline on my VISTA laptop w/ IE & also on the iPad via Atomic Web - the pages look similar w/ a number of windows moving and flashing.
Check the Apple App store for options - might be worth a try but not sure what features from the website you need to use? Good luck!