Ernst.
Visit the BASS Yahoo group, link below, register for group access and after your registration is approved you will be granted access to the hidden *Links* area under the *More* tab where you will find folder paths to the BASS downloads.
https://uk.groups.yahoo.com/neo/groups/astrobodger/info
Approval is usually immediate if you already have a Yahoo groups account, otherwise it may take a few days to be granted access after initial registration.
Visit the conversation boards regularly to check for download links to the beta software releases
William.