Installing Exchange System Manager (ESM) after BES 4.1

Good Morning,

I have been tasked with setting up a BES server for my company. I downloaded BES version 4.1 to be installed on a new machine with Windows Server 03. I also run an SBS03 server which is where exchange is installed and running. After following the instructions provided by RIM for creating the besadmin service account and exchange permission, I am getting the following error in my event logs on the BES server.

{r} MAPIMailbox::MAPIMailbox(2) - OpenMsgStore (0x8004011d) failed, MailboxDN=/o=XXXXX/ou=first administrative group/cn=Recipients/cn=username, ServerDN=/o=XXXXX/ou=first administrative group/cn=Configuration/cn=Servers/cn=XXXXXSBS/cn=Microsoft Private MDB

{username} MAPIMailbox::~MAPIMailbox - DeleteAllDeviceSearches (0x00000000) failed

User username not started

Additionally, I made the mistake of following my friends similar setup which lacked the ESM tools, so I installed and patched them to match Exchange 03 on my SBS server AFTER I did my BES installation.

My question is, do I need to reinstall BES now that the tools are properly installed?
Is my error in line with the mistake I have made, and once I do this reinstall I should be setup correctly, or does this error make you think I have a separate problem?

Thanks for your help in advance.