did you try to reregister the inventory service?
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2033620#Re-register vCenter Inventory Service with vCenter Single Sign-On
I saw that article, but it applies to vCenter Server 5.1.x and 5.5.x. I am using vCenter Server 5.0 so I didn't think it applied to me.
That worked! I saw that article earlier, but was hesitent to try it. I still have a few other problems with the server (some of the entries in vCenter Service Status are red), but the web gui works now as well as search. Ill do some troubleshooting on those specifically and open a new thread if it comes to that.
Thanks for the help!