I've somehow got past the above error, but now it's this :

Connection Error(s):
Index #: 0
Source: .Net SqlClient Data Provider
Class: 14
Number: 229
Message: The SELECT permission was denied on the object 'sysobjects', database 'mssqlsystemresource', schema 'sys'.

Index #: 1
Source: .Net SqlClient Data Provider
Class: 14
Number: 229
Message: The SELECT permission was denied on the object 'sysobjects', database 'mssqlsystemresource', schema 'sys'.

Also since I don't permission to write to the dbo schema, is it possible to install DNN entirely in another schema? Thanks

thanks for the reply! I have followed the instructions in the video linked by that post, however there are still tables, views and stored procedures written to the dbo schema. For example dbo.aspnet_Applications, dbo.aspnet_CheckSchemaVersion, etc.

The problem here is that I have no access rights to write anything into the dbo schema. So is there a way to install DNN so that all the tables, views, and stored procedures go to another scheme other than dbo? thanks!