I use 3 tier shipping rates, and cannot for the life of me figure out how to do it in Powerstore, as it only has a "less than," but not a "if, then" or "greater than" option. Help!!!

What I used in Ecart was:

If totalweight=0, 15.00
If totalweight=<24, 20.00
if totalweight=>25, 30.00

It always shows the lowest available rate. So all you should need is a less than. However the zero weight thing could be an issue. It will assume a zero weight is digital goods and won't charge shipping. Is it possible to have a zero weight in your cart?

So for the bottom two you could do:
if weight < 24, $20
if weight < 10000, $30

The zero weight option I would have to look into for you. I think I have your ftp information still, so I can probably just get that set up for you. Are those the rates you want?

OK, so I got that part correct. The system hasn't balked on the zero weight=15.00. I list the actual weights on the page, but in the shipping weight, I just used "0"

You are welcome to rummage about, to check my work. :)

I updated the code to add shipping even with a zero weight cart. I think it should add the correct shipping charges for you now.