OK, that helped. I muscled through it, made a few mistakes, and learned along the way. This is now set up, thanks.
One more question, and this might be a bit complex. How can I take that tutorial (Display nested recordsets) and apply the "master/detail" functionality to it?
I've tried a lot of things to get it to work, but no luck.
The closest I came was inserting the master/detail functionality first. Then, I went back and followed the steps in the tutorial. If I edit the filter, as in the tutorial, on the items recordset, I get no data, but the recordset loops the right amount of categories.
If I leave the filter set to none, I only get one record, and no loops of the item data.
I feel I am close, but I just need a bit of help.