Can you send a screenshot of the filelocation in Solid Edge Options?
Also for interest is your structure of the SharePoint. Which is the Site, the Doclib and the Folder
We usually have configured that the Standardparts are directly saved in a Doclib. As far as I can see ist that you save in a folder. Never tried but I will test this!
Do you still have the origin configuration from Insight (WSS 2.0) with the different sites? (WIP Site, Rel Site, Ops Site, etc.). It can be a problem of cross site working? We have moved all customers to a single site configuration with doclibs so we have no experience with it.