I am using geoclassifieds lite and under GNU License Terms I would like to modify the tables to sort the data. Geoclassifieds enterprise allows tables to be sorted the way that I would like and I do have a little code from enterprise that could be used as a reference. I have posted the lite code and a little of the enterprise code to be used to see what I have in mind.
If you think this is possible, then I look forward to working with you.