actually it wouldn't be too hard i don't think. i don't have time to do this myself right now, BUT here is a hint towards the solution.
with the hack you are using right now, a new field is added to the 'vb3_thread' table called 'rss_feed'. only rss feeds from the hack will insert anything into this field which is '1'. so it would just need the new way to parse through new posts and the option to turn on and off in the adminCP.
btw, here is the link to the news feed:
https://vborg.vbsupport.ru/showthrea...8&page=1&pp=15