How To Use VBA Array To Combine User Input Form

I have a form created using the instructions here [URL] ..... however I only have two boxes that I need completing. What I need to do is combine both inputs from the form into one cell. The code below shows this working but I am unable to get the array to work.

Essentially I need to get the array to drop in the old number and new number into the new cell so it looks something like this:

Old Number - 1234
New Number - 6543
Value in cell 1234 6543

The code I am using is set out below:

VB:

Private Sub submitmeterswap_Click()
Dim iRow As Long
Dim ws As Worksheet
Dim myarray As Variant
Set ws = Worksheets("x")

[Code]....