Update to this contribution. Full package.

* fixed bug in IE where overlay would sit to the left of the 'Confirm Order' button
* rewrote css into ids rather than classes
* included code to change the 'Confirm Order' button to a 'Pay Now' button when using PayPal or PayMate, which more accurately indicates what clicking the button will actually do. Note you may need to redesign this button to suit your site's look and feel, this is just the one I use, but I have included a layered .png file which should allow you to do this. I used Adobe Fireworks for this but any image program like Photoshop or The Gimp should be able to do something similar.

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