ERROR: You must be a member of the Domain Admins,

After converting SBS Server 2003 to SBS Server 2008
I am trying to uninstall Exchange Server 2003
but I get this error after going to here
Control Panel
Add/Remobe Programs
Windows Small Business Server 2003
Found this site
ERROR: You must be a member of the Domain Admins, Schema Admins, and Enterprise Admins groups.
Which pointed me to Microsoft's explanation
http://www.diditbetter.com/A2E_Bulletins.aspx?articleType=ArticleView&articleId=101
http://support.microsoft.com/default.aspx/kb/842694
ran
dcdiag /v
Errors relating to DNS
Checked DNS Server running on SBS 2003 and SBS 2008 Servers
Started Exchange 2007 Information Store on SBS 2008 server.
Clicked retry and it let me continue
I am trying to uninstall Exchange Server 2003
but I get this error after going to here
Control Panel
Add/Remobe Programs
Windows Small Business Server 2003
Found this site
ERROR: You must be a member of the Domain Admins, Schema Admins, and Enterprise Admins groups.
Which pointed me to Microsoft's explanation
http://www.diditbetter.com/A2E_Bulletins.aspx?articleType=ArticleView&articleId=101
http://support.microsoft.com/default.aspx/kb/842694
ran
dcdiag /v
Errors relating to DNS
Checked DNS Server running on SBS 2003 and SBS 2008 Servers
Started Exchange 2007 Information Store on SBS 2008 server.
Clicked retry and it let me continue