Wordpress: I need to Add somes new features

Hello, I have created a new community website and I have to add somes new features and solve a small problems. This is what I want to do: NB: I will explain more to the person that will do the work 1- send the confirmation link to new members email to avoid spammers. 2- * Add the possibility to members to "add" (upload) their own icon from their member area. * Add the possibility to members to "change" their own icon icon from their member area. 3- add paginat for a specific page. 4- Rate this answer: The answer that was more notes from the community, will be placed first. (like in [login to view URL]) 5-allow member to contact each others (private messager). 6- A small problem in number of author name caracter. Thank you