Recently we have experienced quite some support calls that relate to Sharepoint database upgrade problems. Rainer Asbach from the escalation team here in EMEA wrote some very helpful tools and an associated troubleshooting guide to resolve these problems. Note that these tools are provided “as is” and you should have a proper backup in place before proceeding with any of the mentioned steps.
All the tools and the actual troubleshooting guide can be found here:
Error trying to upgrade from SPS2003 to MOSS 2007
Many software development companies provide services and expertise in Custom SharePoint Development. Custom SharePoint Development enables you to develop your sites and portals, which are customized in such a way that you can earn maximum profits from it.
If you are using SharePoint for document management, want SharePoint reporting or document generation, Need all the basic info about all the vendors I think www.Sharepointreports.info/ is really a good starting point