Ok, first you will need a good file manager. I use "ES File Explorer"
Download and install that.
Next use the web browser to download a plugins zip file. Be sure to choose "Web Browser" if it ask you how you want to download it.
Open ES File explorer and touch the "Downloads". You should see the plugins zip file there.
Touch and hold on the zip file. Choose COPY
Locate the VendettaOnline folder, and touch it.
Now touch the Plugins folder to enter it.
If you do not have a plugins folder, create one with the bottom right icon that looks like 3 dots above each other. Touch it, choose NEW, then Folder, and make the name 'Plugins'. Then touch that folder to go in there.
Next if you copied the zip file earlier, then you will see 'PASTE' at the top of the screen, touch it to paste file there.
Now touch and hold on the zip file and choose 'Extract to'. Then just choose 'OK' for the path.
You should now see a folder for the plugin you just installed.
Launch VO and test it. It should work fine.