I'm running Joomla 1.5.6 and RSG2 1.14.3 (SVN 649)

I've had a user who's been unable to upload pics, and I've been tearing my hair out trying to help her.  She's a Mac user running Safari.  I do all my work in Firefox and some testing in IE.  But I finally tried uploading a pic to her Gallery on Safari for PC and found I couldn't do it, either!  You click the save button, and it does nothing.  It won't submit, just clicks and goes nowhere.

My website is http://www.eleguild.org

Edit:  My friend the compy-wizard used Safari's debug mode, and said it was a TinyMCE error.  I disabled TinyMCE as my editor in Joomla, and now uploads work in Safari.

Any idea for a fix to get it to work with TinyMCE?