sButler,
Most of this info is from this site
Here the code to open cad
Function CadOpen()
Dim CadApp As AcadApplication
Dim CadDwg As AcadDocument
Dim sDwg As String
'<><><><><><><><><><><><><><><><><><><><><>
' Connect to AutoCAD
'<><><><><><><><><><><><><><><><><><><><><>
On Error Resume Next
Set CadApp = GetObject(, "AutoCAD.Application"

If Err.Number <> 0 Then 'Not Running
Set CadApp = CreateObject("AutoCAD.Application"

Err.Clear
End If
'On Error GoTo ErrHndlr
'<><><><><><><><><><><><><><><><><><><><><>
' Open the Drawing Template
'<><><><><><><><><><><><><><><><><><><><><>
sDwg = "C:\YourDrawing.dwg"
If Dir(sDwg) <> "" Then
CadApp.Documents.Open sDwg
Else
MsgBox "File " & sDwg & " does not exist."
'Handle the problem?
Exit Function
End If
Set CadDwg = CadApp.ActiveDocument
Set CadDwg = Nothing
Set CadApp = Nothing
End Function
Your going to have to make it visible. Search this site.
Your also going to need a browse button. The best one I found is at this site. (It's used to pick a folder)I wrote a loop to import a couple hundred drawings at one time.
If you want to pick a specific file use the browse code written by Ken Getz. Search this site.
then just write it to a table (This part isn't a complete piece of code)
rst.AddNew
rst.Fields("Diagram"

= Dir(sDwg)
rst.Fields("Location"

= sLoc
You can set up your form to show the drawing and the location. add a button to open or double click.
If you don't like the open code use the wizard in access, create a button, select open application, set acad path, etc..
I hope this helps you get started.
Praxden