[_ck_]

On a funny coincidence, I just finished a plugin to make 0.9 work with 2.7 cookies.

But are you saying you downgraded WP 2.7’s cookies into 2.5 cookies to make it work with bbPress by replacing the functions from the WP 2.5 pluggable?

Mine is the opposite approach, it let’s WP 2.7 keep it’s cookies and bbPress uses the logged_in cookie from WP.

I guess either technique is valid. You must have forced the salt to be the same on both sides though.