is there any solution for sites with joomla 1.2.6 installed?

My site is a joomla 1.2.6 site (yes, old)

and now google is penalizing sites whithout mobile design





























so I need to change my site design quickly
. any advice? thank you

There was no Joomla version 1.2.6. Do you mean 1.5.26? MobileJoomla supports Joomla 1.5.20 and higher (up to latest 3.4.1 release).