[How To?] Make this change to a little box showing user avatar, post count and rep upon login?

[Zeagion]

Hey.
So I'm using Flatty (don't think it's even necessary to say), and I've changed a part on the sidebar to display a login menu as pictured below.



I'm still retaining the welcomeblock member section in the header though as it contains the user nav menu. 

What I'm trying to do is have it change from the login box etc, to something that looks like this when the user has logged in. 




Any and all help appreciated, 
Thanks.

[.m.]

you can use welcome block code segment instead of the code for the login box

[Zeagion]

you can use welcome block code segment instead of the code for the login box

Oh? I'm already using the welcome block for another section of the page though, am I able to use it in two places?

[.m.]

^ oh, no. welcome block also consists of other menu links. please ignore.

[Zeagion]

Hmm okay. Any idea how I can do this then?

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Update: I've sorted that. I'm trying to get it to display my avatar now by using "{$mybb->user['avatar']}", however it's just showing the link address to it.