Hi I installed this Mod....

and I'm having Trouble.

For example - I sale all different types of items small and Big. Range from ounces to pounds. I sell what is call SETS on my site. These normally are shipped in Priority mail Large flat rate boxes.
How do I Set this only to the type of Product?

I want ALL SETS that are sold to have Shipping Option to Priority Large Flat Rate Mail. How?????

The rest I want First Class mail and if they buy a bunch of stuff Advance to Priority mail, But the Proper Priority mail - Flat rate boxes Small padded Envelope to Small Boxes to large.

I hope I have made it clear on what I would like to do.
if not just ask and i'll fill ya in.

Thank you......... Please I need to fix this Soon.......