Hi Charista,
Second attached screenshot says "The version on the system is Symantec Endpoint Protection Small Business Edition 12.0 (12.0.122.192)"
Client is not upgraded, upgrade clients to the latest version i.e SEP SBE 12.1 RU1
If remote push is not working, try to locally upgrade SEP client.
As per your question "Are my new PCs currently protected?"
--> Yes, they are protected as far as they are receiving latest definitions .We can see SEP clients are showing 27th Jan'12. Try to run manually live-update on affected systems.
However upgrade will be the best option
Check following article for more details about upgrade.
Upgrading or migrating to Symantec Endpoint Protection 12.1.1000 (RU1)
http://www.symantec.com/docs/TECH174545