nodeprofile usernode registerprofile authorinfo

I'd like to use this nifty little piece of code - http://drupal.org/node/64248 - to make all references to users show up as their "real name" rather than their username. But their "real name" in this case is made up of concatenating five fields from the user's nodeprofile content type.

Is it possible to refer to the nodeprofile's fields in this way? If so, how?

In the following code:

I have tried to apply categories/taxonomy to usernodes but can't figure out how user can add categories

for example on my site the user zz_james can see his usernode editpage by going to the url

http://launchlab.org.uk/?q=node/31/edit

but how can I make a general page which I can hard-code into a menu for any user?