Hi Aderson,
your welcome, a gift from us. We use EDT to manage / edit DNN tables - it makes maintaining multiple page data quite easy.
I think I have found a clue / answer to the problem here:
http://forums.asp.net/t/1469261.aspx
As per the post - I find that if I remove the closing </form> tags then the page displays perfectly!
I confess I do not understand and feel uncomfortable as to why this is the case with IE8 - but it does now work.