Hi,
Yaf is running on a subdomain web, so not really integrated in umbraco. Here's a link to Adz's blog which has done a umbraco yaf integration:
http://www.createsoft.co.uk/blog/?p=18Also, there's a communitfy effort on a forum4umbraco project, which I'm coordination, but hasn't produced a release.
Short term solution: Take Adz' approach.
Long term solution: Look for forum4umbraco on Codeplex. We'll be starting our development soon now.
Hope this helps.
Regards,
/Dirk
level 1 & 2 certified - umbraco MVP 2008/2009 - umbraco blog at
netaddicts.be - working on an integrated forum4umbraco