There is Square (the original mod) and Square WebPay (the current mod). Both have had more than one version.
If you used the Square mod to process any past orders, leaving those Square files on your site will allow you to view the complete history for those orders.
I you did not use the Square mod to process any orders, removing the old Square files is optional (some folks are just cumpuslsive about "getting rid" of things). WebPay upgrades are generally done to override existing files with the newer version but always check the readme for any extra instructions.
The old Square is still being loaded with 2.0 as of this date, so many will have the Square files and never have used it for processing.
Hopefully, that clarifies what I was saying.


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I have no idea if you are using OPC, a template that might be a problem, or some other situation.
