I have also noticed that no sales have been showing up on google analytics under the ecommerce section like they did with the regular paypal payment module.
I think agile paypal is a great module and intend to keep using it, but this would be an awesome upgrade
Thanks again for your inquiry.
i think you need to add Google Analytics related tracking code into following page
/modules/agilepaypal/agilepaypalreturn.tpl
Please let me know if you this works for you.