BuddyPress.org

hello guys, i have a problem with buddy press forums new topic
http://buddypress.org/community/groups/how-to-and-troubleshooting/forum/topic/forum-directory-not-accepting-new-topics/?topic_page=2&num=15
i want to re-install the bb with instalation wizard
my wordpress ver is 3.3.2 and ( befor update word press from 3.3.1 to 3.3.2 i have same problem)instaledd in root directory

my bb ver = 1.5.5 ( i tryed 1.2 and 1.5 but the problem not fix)
i have no any other plugin activated.
i try this with bb-defult theme and many other theme
my server is runing windows. php 5.1
the bb-config and wp-config have same database option
my site address : http://www.mones.ir
and my forum address is : http://mones.ir/%D8%A7%D9%86%D8%AC%D9%85%D9%86/
i delete the buddypress and bb config.php from my server and all bb tables from data base.

why when i want to re install buddypress the instalation wizard not shown?
and when i go to the forums section in buddypress setting to creat Forums for Groups.it shown
this words ”
“(Installed) Forums for Groups
”
and the install new group forum button is not shown????
pleas help