Hi Costas,
I had a similar issue when I moved to 6.2...
What I found was that the user profile stuff is just done with a series of tabs and good use of the console and view profile modules. So, under your user profile page, you add an "Activity" page, for example. Then, on your new activity page, you add a view profile module with just the user's picture, the journal module, and a console module... it's that sort of thing just repeated a bunch of times.
The console module has a setting where you choose it's mode. As you'll see, in this case, you just pick that it's for the user profile. Then, it behaves as you'd expect to be the profile menu. Beyond that, there's just a lot of re-adding the view profile module and putting in the template you want.
Hope this helps and makes sense,
Mike