Macro To Compare Values In User Specified Columns And Return To Different Workbook

I am trying to create a macro that will compare several un-formatted workbooks and copy just what I want to a workbook of my one.

I start by having 2 different workbooks opened ("Main" and "Change") side by side like this: 1.jpg

Then i run the macro in my "Main" workbook and it should appear an Userform like it showed in the image below: 2.jpg

This is so that i can manually fill the user form with the correct columns by looking at the excel file, for example:
Ref=E3;City=G3; Data=I3.

Pressing Ok, it fill the "Main" workbook with the matching information so it and closes the "Change" workbook.

At the moment my code is in this stage:

VB:
Private Sub CommandButton1_Click()
myfile = "C:Userssst1brgDesktopRelatorios" & TextBox1.Value
Application.Workbooks.Open Filename:=myfile
Windows.Arrange ArrangeStyle:=xlVertical

[Code] .....

But I am stuck because there isn't any error and nothing happens.