We recommend that if you're using Paypal Standard that you switch to Paypal Express. We've had several clients report Paypal orders not getting recorded in the CFWebstore admin. This appears to a communications problem with Paypal Standard.

If you're using CFWebstore version 6.50 or above, Paypal Express is already built-in. It's simply a matter of setting up APi credentials in your Paypal account and adding them to payment settings in the CFWebstore admin.