To be honest, I would save your time and redesign your application to suit a web page and rebuild in APEX.
All you'll get out of the forms migration tool is the ability to annotate your forms code to maybe help during transition.
I don't think you should rely on any APEX page output with this process.
I have the same problem. I also cannot load the xml file into Apex using the migration project. Do you already found the cause or does anybody else know how to work around this problem.
Honestly folks, converting from Forms to APEX is a manual process. If you are depending upon a conversion tool, you are going to be seriously disappointed in the results..
Los Alamos, NM