I assume from the title of your post that you are trying to view LabVIEW 7.0 remote front panels in Internet Explorer 7 and are having trouble.
Here's a knowledgebase about troubleshooting this problem. Basically, try reinstalling the run time engine on the computer in question, and it should use IE7 just fine. Let me know if this isn't the case.
Brian B
Account Manager
National Instruments