Create database instanace using Database Studio Software

I have a content server running MaxDB. Many times I have created a additional database using Database Studio software. But each time I am uable to connect back to SAP using transaction OAC0. When attempting to create the repo I get a maxdb error. The error is similar to the one that you recieve when you do not have your Max DB Driver registered. I do have the driver registered as I also have other databases up and running and successfully connected, they were created using sapinst.

Does anyone else have this issue?

Also I would like to setup just one DB and then have each other database exist under this one with its own schema. That way when updates and patches are necessary. I only have to complete this one time. Is this possible with MAXDB 7.8?

Thank you in advance...

Storm