need help with persistance and redirects

First the URI match in the first line won't work because you are trying to match the URI to the entire URL. Something as follows should work:

when HTTP_REQUEST {
   if { [HTTP::uri] contains "/BookStore/SecureCheckOut.do" } {
      HTTP::redirect "https://170.224.107.69[HTTP::uri]"
   } else {
      pool bookstore_10.254.243.41_80
   }
}

As you can see on the redirect line I have set the URI variable, which would also contain any trailing query strings, if you don't want those then change the [HTTP::uri] to /BookStore/SecureCheckOut.do.

I would also suggest you store specific commands like [HTTP::uri] into a variable:

set my_uri [HTTP::uri], then you can do the following:

when HTTP_REQUEST {
   set my_uri [HTTP::uri]
   if { $my_uri contains "/BookStore/SecureCheckOut.do" } {
      HTTP::redirect "https://170.224.107.69$my_uri"
   } else {
      pool bookstore_10.254.243.41_80
   }
}

It just looks a bit cleaner, plus you can reuse that variable anytime you want.

HTH

-Wes