Back to my Mac and VersaLink (Westell 7500) DSL modem

[#1]

I am trying to get Back to my Mac working with my VersaLink Verizon DSL modem/wireless router.  I turned on Universal Plug and Play (UPnP), but BTMM is still not working.  What other setting do I need to adjust or is it not possible with this DSL modem/router?

Thanks. 

[#2]

I would like to know that answer to this as well. Thanks!

[#3]

While I do not have a Mac...

#1 Do you have any other router involved behind this 7500?

#2 Do you have any software firewalls installed?

[#4]

No other router is involved.

The Mac does have system firewall software on, but the ports needed are open.  The computer itself reports that Back To My Mac is happy with the configuration, yet the computer is not accessible. 

[#5]

If you plug the Mac directly in to the modem via Ethernet, can you connect?

[#6]

Are the ports in fact open from the net?

This means at any one of the following sites:

grc.com shields up

http://www.dyndns.com/support/tools/openport.html

http://www.whatsmyip.org/ports/

http://www.canyouseeme.org/