Hello,
Version is Zen Cart 1.3.7

I know this has been gone over and I have searched and read many entries but still do not quite get how to do this.

Our Store http://santas-village-shop.com/zen2/ sells many items, most of which can be shipped USPS and that works well. I have 3 items in Master category 5 that I would like to set a flat rate of $3 to ship. I do not want flat rate to show up on any other items.

I will provide textual instructions to the customer to tell them these items must be purchased separately.

SO:

if category 5 item, flat rate $3 - No other shipping method
If any other category USPS - No Flat rate

A method of doing this that allows shipping costs to be added together at checkout would be ideal so that the customer doesn't have to do 2 orders if they want to purchase from category 5 and an item from another category. However as stated above, I can provide textual instructions to the customer if needed.

Any help would be greatly appreciated

Thank you
Ed LaBonte
Santa's I.T. Elf