Hi Linda,
When you purchase a design from a site, it will ask where you would like to "zipped" or "unzipped" files; "save" or "open". Request "save" - "zipped". Then it will offer Browse options. WinZip will be in this area. Prior to closing design site out completely, double check that your design was in fact placed into the WinZip area.
From WinZip, you can "open" and then "extract" to your USB drive (Flash Drive). Then bring to your machine. Utilize a 1GB USB; nothing larger.
I do have order within my WinZip area. After purchasing Catalog Xpress, I went in and re-categorized items to match for both areas. For example.....Baby Designs, I read as: Baby.Elephant.Bib; Baby.Script; Baby.Rattle -- Nationality, read as: Russian.Easter Eggs, Russian.Matryoshka.Cross Stitch, Ukranian.Easter Eggs.Redwork so forth and so on. Sometimes, I include the size (4x4; 5x7) in the title as well when I need for that particular design. I utilize the size most when I have a quilting design that works within a 4 x 4 area or a 5 x 7 area.
It all flows once you understand the process and have it down pat. Luck and fun!
Joan