Hi Rob,
I updated tonight our production BP 4.0 to 5.0... the upgrade did produce one SQL error message during the setup of the new BP 5.0, but it was for a company that we don't use in BP, so it was not really a concern.
After the update was completed and the BP server rebooted a few times, the BP is accessible and seems to work, with one exception... All the embedded web-parts that are using the BP ActiveX are returning an error 404 NOT FOUND... even in the Administration page when trying to edit the requisition management hierarchy... none of the native web-parts are working, even some pages are not showing up completely. The regular SharePoint WSS 3.0 pages are displaying fine. This looks like a permission or security issue on the IIS side, because when browsing the pages from within IIS, they show up just fine too... but the major difference is the URL : the regular URL is https://bp.contactft.com/BP, whereas when browsing the content within IIS, it shows http://localhost:82/BP... the major difference looks like to be the SSL usage in one case and the FQDN is replaced by 'localhost'...
The certificate for the SSL was working fine under BP 4.0 and nothing has changed on the server identity side...
Do you have any idea where to look for to fix this issue ?