Unable to edit Custom Fields in CustomPress

After creating a Custom Field, I cannot go back and edit any aspect of the Custom Field and have it get saved.

That is, I can make changes, but they don't stick after clicking the UPDATE CUSTOM FIELD button.

WP 3.0.5, TwentyTen Theme, Only CustonPress and the WPMU DEV Update Notifications active.

CustomPress Version 1.1.0

NOTE: Am also having the EXACT same issues as this poster:
https://premium.wpmudev.org/forums/topic/embed-code-issue#post-67443

But I can see no answers for his issues (Checkboxes, Dropdowns do not output data to page, but Textbox, Multiline Textbox do output to page.)

That post is 2 months old, and there is no follow up answer from your team.

Please advise, as these are CRITICAL to my needs.