Making Time Machine work with the ReadyNAS

Hi,

I've been using a ReadyNAS Duo to successfully backup my iMac for the last couple of years. Never had to do a restore but nice to know it's there if I needed it. I've been using the old method outlined here before the Time Machine feature was added to ReadyNAS with no issues. Recently updated to Lion and discovered problem with ReadyNAS and Lion and old method. Followed migration steps to move to supported ReadyNAS Timemachine function by moving sparsebundle to ReadyNAS Timemachine directory. After moving the bundle to appropriate directory, is visible if I login as ReadyNAS but not visible as an available backup under Timemachine. What do I need to do to make Timemachine recognize this as a viable backup? I've got a couple years of backups here. Hate to trash and start over.

Also, I'm on the 4.1.8 beta release the support Lion.

Thanks