Just got response for Froogle support re: feed upload problems

"We had experienced a systems error that was preventing us from
receiving and processing feeds correctly. The problem has since been
fixed and we apologize for any inconvenience this may have caused you.
Please feel free to upload a new feed to our server at your earliest
convenience.

If you continue to experience difficulties uploading, or have any other
questions or concerns, please don't hesitate to contact us."

Groovy!