BuddyPress.org

I’ve just tried adding BuddyPress (v1.5.7) to an existing install of WordPress (v3.4.1) but ran into a problem. Basically because I’m running my install on a Windows box using IIS (v5) I can’t use .htaccess for pretty permalinks but I can’t work out how to stop BuddyPress from trying using them.

Is it possible to use BuddyPress without having pretty permalinks and if it is how can I do it ?

p.s. Unfortunately I’m stuck with using IIS5 on Windows (moving it on to a UNIX box isn’t an option).

Thanks,