Did you ask any support questions here about your issue with bbpress before posting this?
Did you look at the documentation and/or post a question on the support forum for bbpress at https://codex.bbpress.org ?
This is possibly a problem with your theme. for some themes/frameworks such as genesis and thesis there is a specific plugin available which can be installed to provide bbpress compatibility.
What theme are you using? If it is one hosted on the www.ads-software.com theme directory, start a topic on the www.ads-software.com forums asking about compatibility, if you are using commercial theme, ask on the vendors support forum.
