[xwiki-devs] interested

Hi all, I am prasad jeewantha from university of moratuwa Sri Lanka. And I am interested in developing Xwiki specially "XWiki Jabber, Google Talk, Skype Integration", "Calendar application " and "Photo Album Application ". I have programming knowlede in Java, c and c++. Id really appriciate if someone can send me some documentation, tutorials etc to have a start up. I have issues in getting the sourse code into eclipse. I havent used maven before so any step by step guide will be highly appriciated. thanks in advance pj <http://dev.xwiki.org/xwiki/bin/view/GoogleSummerOfCode/XWikiJabberGoogleTalkSkypeIntegration2009>