vb 4 API help please...

[mickknutson]

I am trying to get my feet wet on using the new VB4 api, but am having an issue with understanding vb, php and how vb works under to covers.

As a beginning, I would like to just:

1. Login existing user
2. get latest forum postings
3. Logout

I plan to use Java and Jackson JSON framework to for all the request/responses. But I am stumped after getting the INIT.

    static final String url = "http://www.vbulletin.com/forum/api.php?api_m=api_init&clientname={clientname}&clientversion={clientversion}&platformname={platformname}&platformversion={platformversion}&uniqueid={uniqueid}";

I have the full INIT JSON object, now how am I suppose to perform LOGIN, LOGOUT, and method requests?

Also, is there something with sign, and unsigning I am suppose to do? I see the topic of signing a request, but must I unsign the responses on some method requests?