Admin Order History Product Image for OC v2.3.x & v3.x
You can see product image in order info page as admin. Also product link changed from edit link to preview product link.
Tested on OpenCart v22.214.171.124
Tested on OpenCart v126.96.36.199
Tested on OpenCart v188.8.131.52
Tested on OpenCart v184.108.40.206
Opencart v2.3: upload the xml file to installer.
Opencart v3.x: upload the zip file to installer. You need vqmod for this extension and then you will just upload the vqmod folder to your upload directory.