Pain with vCenter 5.1

I'm wishing I could just use 5.0, but I need some of the 5.1 functionality for nested virtual servers...

After running the Simple Setup, I get an error trying to log into the web client:

Failed to connect to VMware Lookup Service
https://:744/lookupservice/sdk - SSL certificate verification failed. 

Rebooting and waiting ten minutes for the service to start up fixes this.

After successfully logging into the web client with admin@System-Domain account, it doesn't list any available vCenter servers.  It appears that the vCenter service never registered with the Lookup Service, so this has to be done manually, per the doc at http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2033620.  See the "Registering vCenter Server with Inventory Service" section.

cd C:\Program Files\VMware\Infrastructure\VirtualCenter Server\isregtool

register-is.bat https://machinename.corp.com:443/sdk https://machinename.corp.com:10443 https://machinename.corp.com:7444/lookupservice/sdk

This seemed to work well.  Loads of text scrolling by during the register.  After connecing back up to teh Web Client, There was a message showing the following (not exactly, I didn't capture this verbatem):

Unable to connect to one or more vCenter Servers:
https://:xxxx

So I'm pretty back to where I was before trying to register the vCenter server with Inventory Manger.