2 public folders that will not replicate to 2007

I am in the final process of migrating from 2003 to 2007.  The 2007 server is functional and I'm trying to clean up, and remove Exchange from the 2003 server.

In ESM, I have ran the 'Move replicas' option and it appears that all of the folders except 2 have gone over.  They are both in the Public Folder Instances area and here is the info on them:

Item 1
Name: ExchangeV1
Folder: ExchangeV1
Size: 361kb
Folderpath: Schema-root\Microsoft\exchangeV1

Item 2:
Name: Old Contacts
Folder: Old Contacts
Size: 94k
FolderPath: Business Contacts\Old contacts

Both of these folders appear in the new server Public Folder Instances area.  The Business Contacts\Old Contacts folder shows 0kb on the new server and the ExchangeV1 folder shows 67kb.

The old server won't let me delete the Public folder store until it is all cleared out.  Any ideas on how to do this?

thanks!