Hi giahan...
After that validation page you must create a session variable or something to know that the user has logged in?
If so change your index.html file extension to index.cfm and check if the user has passed thru the validation process. If so, display the frame, if not send the user to your validation page.
I hope this help,
I am not 100% sure of your current design,
Chris ;-) [sig][/sig]