We have faced the websplitter with some different functional issues in Internet Explorer Version 7.0.5730.13 (Windows XP ) and 7.0.6000.16546(Windows Vista)... Could you please clarify whether any exisitng issues are there / working on any hot fixes based on these sort of complaints?
Internet Explorer 7, Windows XP, and Windows Vista are all supported environments for WebSplitter.
If you're encountering specific issues, you should either post them here (as separate threads for each issue), or submit a support request (as separate requests for each issue).
We recently released a new hot fix for our ASP.NET controls (including our Aikido controls such as WebSplitter). If you have a registered key, you can access this hot fix from the My Keys and Downloads page of our website. This might address some of the issues you're encountering.