Payments > Subscriptions > Store > Paypal (How?)
Installation and Configuration
I'm not sure what you mean by store. The new payment modules consist of the following:
jrPayment (needs to be installed first)
jrBundle (allows you to bundle items together and requires the jrPayment module)
jrSubscribe (allows your to setup subscription quotas and requires the jrPayment module)
jrProduct (allows profiles to sell items and requires the jrPayment module)
Hope this helps!