i'm obviously a new user and i already have a big problem.

my blog was set up by a friend who created it as a multiple blog but i wanted a single. i deleted all the blogs except for blog all and link blog.
so i dont know what to do...because everytime i post on one page it automatically posts on all. how do i fix this?

i have tried creating a new blog and posted there...but it still posts on the default...i dont want that...

also, how do i create a links page without just posting the links?