How can I find a gitk type of tool for hg

Can you please tell me where I can find a 'gitk' type of tool for hg on ubuntu?

I have tried '$ sudo apt-get install tortoisehg' but I get this:

$ hgtk
abort: This version of TortoiseHg requires Mercurial version 1.3.n to 1.4.n, but finds 1.5.2

Solution

There's an extension called hgk which looks very similar to gitk and distributed with recent versions of hg - you often need only to edit your .hgrc to enable it - though it's only really a visualisation and patch browsing tool and doesn't let you make anywhere near as many changes as gitk. (Personally, I prefer hgview which looks a lot better though is again only really for visualisation and patch browsing.)