admin options, login, and mic problems in express

I have three problems which help and the help room people were unable to give any assistance with. I am using paltalk express from a mac with mac os x 10.4.11 installed

1. Unable to use admin options when I log into a room where I have been given admin rights. I don't see them anywhere they should be and the help staff said they should be.

2. When I log in, I am logged immediately back out several times each time I log in.

3. I am sometimes logged out in the middle of using chat for no discernible reason.

4. I am able to hear voice, sometimes, in chatrooms but can not use the mic to talk. If I don't have voice, logging out and back in to the room usually fixes it.. but can never talk. I can click the "push to talk" button.. and I see myself key up in the top... but no one else does and they can not hear me when I speak.