After installation of each OCMod extension you need to press modification refresh button its a big headache.

DEMO
http://www.dyisol.com/opencart2200/admin/

username: demo
password: demo

Its OCMod extension
INSTALL INSTRUCTIONS

1. Go to admin panel, menu Extensions, Extension installer and upload provided XML file.
2. Go to Extensions, Modifications and press Refresh button (it is in upper right corner).

Support and installation is free. Contact us dyisolco@gmail.com