1- Install VqMod and activate it by use of the HREF-Command
http://yourshop/vqmod/install/index.php
2- Install a VqMod Manager, they look, at least in OC v.1.5.6.x like shown on the image.
3- Install the file upload module from Extension Installer.
This, I cannot reply to, because I upload my STUFF, checked and 'cleared', by ftp, so, I just don't know, how an extension installer works.
I would NEVER in my Life upload an unopened and unchecked packed file, and install it anywhere. Old Style
Further, I use no OC v.2.x. I have enough problems already, as it is...
Some Mod's have to be, kind of, ACTIVATED by allowing them to be used, by Someone, specified, as shown on the bottom image. Always check there FIRST, after EVERY Mod Upload/Install, and ALLOW ALL Extensions at best, for the TOP-Administrator, to make sure, this STEP is done, to
validate all, to be used/handled by am individually, accepted USER-Group Member, at first. OC v.2.x should use similar Titles, I assume, at least.
Good Luck
Ernie