Open the workbook and press ALT + F11 to open the VB editor. Then click INSERT >> USERFORM to add the form. When you insert the form you will see the properties window on the bottom left hand side. Scroll through the list for the property called "ShowModal" and set to False. Next add your button to the form from the control toolbox. Once the button is added you can change the default text by changing the caption property. After the button is added just double click it to bring up the button click event. This is where you add code to hide the form as well as the second part of your macro. I'm back on Meebo now if you need more help.
Regards,
Rollin