Hello,
Thank you for your interest and faithfulness in the TELEMAC system for sooo many years.
Unfortunately, it would be too much work for us to resurrect SUBIEF, a module that is not part of the open source distribution. Nonetheless, we will be looking into the IP (intellectual Property) of that module in case this request become a popular demand of the community although we think at this stage that it might have been removed from the open source version because of IP issues with third parties.
In the meantime, can you let us know why you cannot use WAQTEL or even the AED2 library for your work ? If you can share you SUBIEF chemistry, maybe we could advise as to how to do it with a more recent version of the system.
Hope this helps,
Sébastien.