Joomla Comment v3.26 & Joomla 1.0.15 not work. I try with fresh install of Joomla 1.0.15 and another site with upgrade Joomla from 1.0.12. to 1.0.15.
On this site was two diferent template. 1 is Rockettheme - MediaMogul and 2 is YouJoomla template - innovative_lab.

Ver. 3.25 & Joomla 1..0.12 with MediaMogul template works fine.

Ver. 3.25 & Joomla 1..0.12 wit YouJoomla template - innovative_lab say :
" Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request "

Any ideja ?