you can download the B1 installer from this link:
After installing, you will have 30 days trial version. You can run B1 without using license.
The demo version is available from this link:
you may contact SAP local partner in your country to download the B1 installer.
In order to download SAP 8.8 you should have S-User Id and its Password....
Please click on the below link from here you can directly go to SAP 8.8 download page....