On the insert page on line 57 you have this:
MM_editCmd.Parameters.Append MM_editCmd.CreateParameter("param4", 202, 1, 255, WA_DFP_UploadObj.Form("actorimg")) ' adVarWChar
You should open this page and select the following part of this line:
Then go to the bindings and drag the binding for The Uploaded File - Server File Name into this highlighted part of the code.
On the update page highlight this line part of the code on line 34:
Then do the same as you did on the insert page and drag the server file name binding to this highlighted code. This should replace the code with the code for the server file name on both of these pages. This should get the insert and update server behaviors to add and update the file's name.
As for using the DA insert and update server behaviors have you ever tried using the ASP function for SwitchMonthDay? I'm including the code for this attached to this post.