[RamdonGhai]

Originally Posted by jkwalnut

Is is possible to run both a production and a test instance on the same host (test under a different path)?

Yes, just generate a backup of your production database, and restore it to a new database. In the config for your test environment, point it to your test database, instead of your production one.

Originally Posted by jkwalnut

Are developers allowed to install a local copy?

You tell me? If they have access to the server, they will have access to your source. If they have access to make changes to this, they can easily grab your database as well. They simply need to copy the public_html directory (or whatever is configured in apache) and the database to create a local instance of the project. This is probably the best way to work too.

If you don't trust your contributors, it probably isn't a great idea to use them.

I'm not sure if this was more of a licensing-related question though.

Originally Posted by jkwalnut

Any hints on using source control with vbulletin?

Anything would work. Subversion would probably be among the simplest.

Hope this helps.