1. Created bp-custom.php and added as what mentioned in the link:
Uploaded bp-custom.php in plugins folder so that it loads before buddypress
created a test ad with classified. But that does not show in the activity stream of buddypress. Anything i am missing
2. also is it possible to have multisite where
site 1 - buddypress
site 2 - classifieds
site 3 - directory etc.,
where when users posts ads fro site 2, the ads can get displayed in activity stream of site1.