I installed the new BOINC version this morning, and SETI is still not updating for me either. I don't read their forum, but I'm sure it will sort itself out soon enough.
Ewolff, I know what you mean about BOINC being a hog. I use a couple of my Brand D machines for it, not my Alien baby--but you can set your preferences to keep it in check:
Do work while computer is running on batteries?
Do work while computer is in use?
Do work only after computer is idle for xx minutes
Do work only between the hours of (xxx)
Leave applications in memory while preempted?
(suspended applications will consume swap space if 'yes')
Switch between applications every xxx(recommended: 60 minutes)
On multiprocessors, use at most x processors
Use no more than xxx disk space
Leave at least xxx disk space free
Use no more than xx% of total disk space
Write to disk at most every xx seconds
Use no more than xx% of total virtual memory
...just in case you decide to give BOINC another try!