How to create dynamic aspx page after posting forums with forum title

hi friends,

i am creating forum site i want to create dynamic aspx page automatically after posting forums with forum title.

example:

see this forum url like:

How-to-create-dynamic-aspx-page-after-posting-forums-with-forum-title.aspx

And another thing is, when user register into the forum site

the url will create automatically with userid

Thanks in advance

Thanks
tvn