Fresh install of vCloud Director 1.5 fails to set up ESXi 5.1.0 hosts

Hello dear community .

I have the following error message when  trying to create a 'Provider-VDC' on my freshly installed vCloud director appliance :

"Could not retrieve state for sequence: seq_os".

This is a lab/evaluation/proof of concept environment :

- 3 Esxi host 5.1.0 build 799733 running under workstation

- Vcloud director running on Centos 6.4 64 bits . The version of vcloud director is 1.5.0.464915

- Microssoft sql database 2008 r2 .

-vcenter virtual appliance 5.1.0

I already fin this thread here http://communities.vmware.com/thread/327222?start=0 but not sure if the fix described in this thread will do the trick in my case . I am also a complete newby in SQL database and I am having trouble to add a new entry to the [os_id] table , which is more or less the workaround described in the thread .

Any help will be appreciated ,

Thanks

Da