How to use table?

[Garry Chiang]

Hi all,

I urgently need some advice on how to use a table
(never mind about the number of fields). More specifically,
a text field.

I've done this:
        TblSetItemStyle(tblPtr, i, nColumn, textTableItem);
        TblSetItemPtr(tblPtr, i, nColumn, aStringVariable);             
        TblSetColumnUsable(tblPtr, nColumn, true);
        TblDrawTable(tblPtr);
But why doesn't the text in aStringVariable displayed? What 
is missing, and what is required?

Then there is this custom callback load function:
        TblSetLoadDataProcedure(tblPtr, nColumn, CustomLoadItem);

In CustomLoadItem, what do I do??? The O' Reilly book 
doesn't explain much.

Please help... Thanks in advance.

Regards,
Garry

p/s I'm new in Palm Programming.