Macro for Excel 2003 and 2007

[newbie_prog]

Ok, I created a macro and saved as an add-in in 2003 then put a button on the toolbar to run the add-in, easy.
Problem put the add-in on another computer running 2007, can't create an icon/button on the quick access toolbar in order to assign the add-in to it.
Since it's not as easy as right click and assign the macro to the button what do I do?
Thanks!

 

[VoG]

It should show up in the Add-Ins tab.