I commented out this line from Web/Themes/{theme}/Common/UserWelcome.ascx:
<%--<img src="<%=ResolveUrl("~/CuteSoft_Client/CuteChat/images/icon_invite.gif")%>" align=absmiddle><a href="###" onClick="Chat_OpenMessenger()" >Messenger</a>--%>
Not sure if this will suffice or not. I'd appreciate further elaboration. There is no line drawn between Cute Chat and Cute Messenger by way of seperate files or directories, they seem to be intertwined. Please let us know.