Eshop is a nice ecommerce plugin for WordPress but it does not support taking credit card information directly on the site but redirects the customer to Authorize.net site or Paypal or some other payment processor. I had a need to accept cards without redirecting the customer to a external site so I wrote a patch for Eshop. Download patch here
The patch is a patch file and you’ll need to use the unix patch command to apply it to an existing eshop folder. It was created with eshop 6.2.2 but might work on other version with some tweaking. Download eshop 6.2.2 here.
To patch run the command:
patch -p1 < authaim.patch
Within the eshop directory. The patch file will have to be located in the directory as well.
If you don't have unix or can't use patch here's a prepatched version:
I make no promises that it will actually work properly so test it before installing it on a live site.
Leave comments if you have any problems and I'll see what I can do.
I try to get a patched version for 6.2.8 soon.