This thread may help you design your own sidebar (or horizontal user status bar) directly in your theme's template, as an alternative approach to using the built-in sidebar widget. It'll show you how to display a user's name, money, avatar, etc. We'll be using Smarty handles, which is something Mysidia is capable of doing but actually doesn't make a great deal of use of - it's really pretty easy!
Follow that up by reading
this other thread where I got some help from IntoRain and you can also add the message count to your new horizontal sidebar. I also revealed some code to display the time and users online!
(I kept my actual sidebar but removed all the information you mentioned from it and just made a horizontal bar.)