Hi Ashfame,
First: i feel your pain in integrating WP2.7.1 and 0.9, i’m sure alot of us do – that said though, it’s definitely possible.
Second: it’s definitely possible to achieve site wide login using either _ck_ or Ann’s plugins. Without a doubt using _ck_’s is far easier, as Ann’s comes with no documentation and there are steps required that no-one’s written out. It took me about an hour of searching and playing with Ann’s to get it to work, but once it did, it worked brilliantly.
Basically follow the steps given on the 3rd page of the integration forum posts (hey dont expect documentation for something a sought after as this to be on an actual page – like the integration one – or even at the start of a post so it’s easily found). Then add in
define(‘COOKIEPATH’, ‘/’ );
define(‘SITECOOKIEPATH’, ‘/’);
define(‘COOKIE_DOMAIN’, ”);
to both the WP and BB configs. Obviously you can change the values.
The other thing that really helped me, after alot of trial and error, was to set up WordPress first. Activate Ann’s plugin. It then automatically boots you our of the WP admin area. you have to go to/wp-login.php?action=logout and then entirely clear your cache and cookies.
Then re-log in. The cookie WP sets will now be recognisable.
Install BB AFTER this step to make life alot easier; as bbpress will recognise the admin cookie right form the word go
Third: Ann’s method overwrites the ‘new’ wordpress cookie method, so the theory is that it’s future proof. at least throughout this WP2.7 branch. The bad news is, according to an automattic post i read yesterday, that the OpenID integration in WP2.8 may require a rewrite of all authentication in WordPress. If this happens then there is a good chance that all authentication in Automattic systems will have tot change, there’s just no way of future proofing against a company wide re-write. But if that doesn’t happen, then Ann’s plugin should work for a long time.
Fourth: A the risk of reading form the _ck_ bible, there’s very little reason across the board to upgrade from WP2.5.1 to WP2.7.1 . There are no known security issues in 2.5.1. I’ve yet to come across a WP plugin that doesn’t work for 2.5.1, it’s a damn site easier to use, and it’s faster and more lightweight. Obviously, you may have different requirements that we don’t know about, but I would look long and hard at not using 2.7.1 if i were you.
Good luck, Kev