Currently we do not offer a downloadable trial. Keep in mind though that we do offer a 14 day money back guarantee. Additionally, our online demo is fully functional and allows you to make most major changes to allow for testing. The demo does reset every hour on the hour.
SunShop Demos: http://www.turnkeywebtools.com/sunshop/demos.html
PHP Live Helper Demos: http://www.turnkeywebtools.com/phplivehelper/demos.html
Money Back Guarantee Information: http://www.turnkeywebtools.com/shopping-cart-guarantee.html