Open Act, right-click on the ACT toolbar, and select "Customize...".
When the "Customize Menus and Toolbars" window opens, click on the "Custom Commands" tab.
Click the "New" button, enter "QuoteWerks" for both the Command name and the Tooltip text.
Click on the "Browse" button.
Browse to the location of your QuoteWerks files, select the "QuoteWerks" shortcut, and click Open.
Click on the "Add Command" button.
Click on the "Commands" tab.
Select "Custom Commands" from the Categories list.
Click on the "QuoteWerks" command, hold the mouse button down, drag the
command up to the ACT toolbar, and drop it into place.
Right click on the new button and select "Image and Text (Always)".
Close the "Customize Menus and Toolbars" window. The shortcut is ready.
Here is a short video demonstrating the process
http://screencast.com/t/gFbyECT58Dm