Help with a Seperate Page for Custom Profile Field

[Starscream]

I've searched the forums and a couple of people have asked for this hack or one similar to it. Basically, I want to create a seperate page that just shows usernames and a custom profile field - something similar to the memberlist page.

The only difference is, I only want the Username and profile field to show up if someone has filled in that certain profile field.

I've tried a few different approaches to this and none of them have really worked out for me yet. On this attempt I've basically hacked memberlist.php to only show the things I want. Then, I renamed it and uploaded it to my forum - works (pic included below). However, it shows two custom fields (only want 1) and also shows users who didn't fill in the field. I have not modified any of the templates that the memberlist uses (nor do I really want to).

What do I need to do to make the memberlist.php (or renamed file) accomplish my goals? Is it something I can do with just the .php file or do I need to create new templates.

Any help would be much appreciated.

-note: I had a similar post a while back, but I decided to create another post as I'm trying to go in a different direction than before and didn't want to confuse the old coding with this one.