I just downloaded the USPS V1.5 shipping module by the Zen Cart team, but discovered there are no instructions for this module. I'm working on V1.3.9h of Zen Cart and am trying to build my first store, so I'm a newbie. I've installed a few other modules, so I'm getting the hang of this system.
However, for this module, should I use the override system or do I just overwrite the existing files? Without any instructions, I hate to upload the files until I get an answer.
Thanks for your time.
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