Hi Earl,
are you having SAP on your desktop / laptop or in company ?
To access SAP after 30 days of installation you need to have license. To have license you need to provide your server details to SAP website called service.sap.com for which you need to have an id called "S" service userid.
You can have this S userid only when you / company have purchased the product from SAP (Payed to SAP).
Once you have those S Userid you provide your server detail and then you register your hardware key on to that website and it send you key. Which you install on your server using login to 000 client with SAP* userid with usual password call pass.
Hope it helps
Cheers
Sharma