OS X :: Transferring ITunes Content To New Account On Same Computer?

I recently had to create a new account (admin) because of problems with the old one. I've now been using the new account with no problems for a few weeks, and am ready to ditch the old one completely. I've got everything organised except my iTunes content. iTunes on the new account behaves as if there's nothing there, so I can see I've got some work left to do.

I authorised iTunes on the new account for both the iTunes store (was told it already was authorised) and for my [URL] account. I changed permissions to read and write for everyone on iTunes in the old account, but that didn't help anything.

Is there a simple way to do this? Once this is transferred I want to delete the old account completely, so setting content up to share isn't the best solution for me.