Microsoft released a new version of the BizTalk Server 2004 Installation Guide on januari the 4th. One thing worth mentioning was surely the problems you face renaming a SQL Server after installation as written by Patrick.
And don't tell me it's never been done.
In my current project we use the BizTalk Explorer by Martijn Hoogendoorn. But we get the following error on the production server if we try to edit a send or receive location:
"could not display property frame. COM object with CLSID {8C84BD07-D771-4704-96FA-C482BC6BAA6B} is either not valid or not registered."
It appears we need a developer dll, named BTSGridViewCtrl.dll, on the production server. After installing this dll everything works just fine.