Andrew,
The 8000M should have no problem at all to be discovered in TT. The 26xx series cannot be discovered.
The alternative for TT is PCM (Procurve Manager). It does not have all the functions like TT, and I have heard people hating and loving it.
There is a trial version for PCM+ (30day's) included in the basic installation.
Another piece of software is Openview, but very high in cost.
What is it that you want to do?
Regards,
SCOOTER