Move Records On ListBox

Here's a tough one that has been driving me crazy! (Probably easy, but I don't want to admit it!)

I have a form with a listbox called "lst_exclist". The recordsource for this listbox is the following query:

SELECT tbl_collexcludereasons.priority, tbl_collexcludereasons.excname, IIf(tbl_collexcludereasons.enabled=-1,'Enabled','Disabled') AS enabled, tbl_collexcludereasons.priority FROM tbl_collexcludereasons ORDER BY IIf(tbl_collexcludereasons.enabled=-1,'Enabled','Disabled') DESC , tbl_collexcludereasons.priority;

Which basically gives me this with dummy data:
2 PIPELINE ENABLED
3 HELLO ENABLED
5 GOODBYE ENABLED
1 BAD DISABLED
4 GOOD DISABLED
6 LAST DISABLED

I had two command buttons, one up arrow and one down arrow. The up arrow is supposed to move the selected record on the listbox up by exchanging the next lesser priority number with itself. The down arrow does the same. The DISABLED records are supposed to be ignored on the move up and move down procedures, meaning only ENABLED records are allowed to exchange priority numbers, and thus move up or down on the list. I tried the following code:

Me!lst_exclisthidden = Me!lst_exclist

DoCmd.SetWarnings False

Dim startingnumber As Integer
Dim endingnumber As Integer
Dim nametochange As String
Dim getchangerst As DAO.Recordset

If IsNull(Me!lst_exclist.Column(0)) = True Then
MsgBox "Please choose an entry on the above list to move.", vbCritical, "Error"
Exit Sub
Else
End If

If Me!lst_exclist.Column(2) = "Disabled" Then
MsgBox "There is no need to move a disabled selection, please enable the selection to change it's priority.", vbCritical, "Error"
Exit Sub
Else
End If

startingnumber = Me!lst_exclist.Column(0)
nametochange = Me!lst_exclist.Column(1)

endingnumber = startingnumber + 1

If Me!lst_exclisthidden = acLast Then
MsgBox "You cannot move the bottom selection on the list down, please choose another one.", vbCritical, "Error"
Exit Sub
Else
End If

While DCount("*", "tbl_collexcludereasons", "Priority = " & endingnumber & " and Enabled = -1") = 0
endingnumber = endingnumber + 1
Wend

DoCmd.RunSQL "Update tbl_collexcludereasons set tbl_collexcludereasons.priority = tbl_collexcludereasons.priority - 1 " & _
"Where tbl_collexcludereasons.priority <= " & endingnumber & " and tbl_collexcludereasons.priority > " & startingnumber

DoCmd.RunSQL "Update tbl_collexcludereasons set tbl_collexcludereasons.priority = " & endingnumber & " " & _
"Where tbl_collexcludereasons.excname = '" & nametochange & "'"

Me.Refresh

Me!lst_exclist = endingnumber

Me!lst_exclisthidden = Null

DoCmd.SetWarnings True

But it seems to loop when it gets the the area it is checking for numbers because the highest records is disabled, so it's ignored. How can I make this work? Please help!

Thanks

Vassago