[_ck_]

Do you possibly have rewrite rules in a higher level directory that are interfering with the bbpress rules?

When you say they don’t work, did you get a specific error?

It’s really entirely up to apache and the httpd.conf settings, the host OS should not matter too much…

Your version of bbPress is a big outdated (though I run 0.8.2.1 elsewhere myself) but it should still work fine for permalinks.