How to use an iFrame or upload page.

I have my site set up and working fine with the theme of my choice. However, I also want to embed the upload page ( the "g2_view=core.ItemAdmin&g2_subView=core.ItemAdd" one ) in an iFrame with a different Theme.

I have been looking around the site and understand how to change the theme using galleryembed, but not sure where to really start. I really only want to use gallyerembed for the upload page .

Any suggestions?

Thanks!
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