Web portal plugin needed.

Hi,

I am looking for a plugin that allows me to run a fairly simple portal for a local kindergarden. It needs:

• Four levels of members – Parent / Teacher / Board / Admin. The levels are in that order.
• Each level can see the lower levels, but not the one above them.
• All files added need to be approved by the Admin before they are published.
• All levels bar parents need have the option to add content including files.
• All this needs to be done in the front end rather than on the backend of WordPress.

I can’t seem to find anything that fits, but i am sure there is something out there. i don’t mind paying.

Thanks so much!