MUI and NList Questions

Hi all, I've recently decided to learn to program using MUI, and it's all going well so far - thought totally new to me compared to GadTools! I'm programming in AmiBlitz and so far I haven't found much it can't do with MUI, seeing as most stuff with MUI just uses DoMethod etc.

Anyway, I've a bit of a problem with the NList class: In a multi-column list I don't know how to find out the currently selected item if the items have been moved around (e.g. by dragging or sorting). Reading MUIA_List_Active gives me the entry number, but if the order's changed it doesn't mean anything. DoMethod with MUIM_NList_GetEntry will give me the contents of the first column but that's no good either if I have more than one entry with the same string in the first column.

I'm not looking for specific Blitz code here, more a general method for figuring out which item(s) is/are selected so I can act on them. Thanks for any pointers! (pardon the pun)