Anyone have a clue why the allvideos plugin works on a content page but doesn't want to work
with  a module that is one the page?

check it out:
www.fearsmag.com/joomla/index.php?option=com_content&task=blogsection&id=19&Itemid=1084

It worked on my locally developed website but once I put it up on the web. No go. ???

Mambot's must be processed in that module. If it is a User type of module just set Enable mambots to yes. If it's a custom module you will have to use that code from User modules in joomla and incorporate it in your module.

I have the same problem :( how do you change the parameters on the module?

Hey, how do you resolve this in 1.5? There are no mambots on modules anymore!

Take a look here please:
forum.joomlaworks.net/index.php?topic=6215.0