Hi Sohrab,

As for the robot.txt file, you can always look at the file used by one used by the top Joomla SEO & Performance website:
joomlaseo.com/robots.txt

I hope ths helps,

Joe Campbell

Nice one Joe :)

O thank you Krikor and Thank you Joe.
now I understand. I will go and check them out.
Actually what I did was also pretty awesome but I still couldn't change the file names.
what I did was, I assigned schema.org itemtype photograph to the template files of K2 and assigned itemprops such as name, keyword and description to them to be filled with the k2 item's title and keywords. So now google finally bring my pictures in the searches. but it is not still as good as I desire. I will go and try your solutions too.
bests

I'd love to see the code Sohrab :)

Krikor wrote: ...The extension I posted will let you keep the original name of the image and provide some other functionality as well...

Does this work with K2 category images, as well? If so, I assume you still have to manually add each one?

Krikor wrote: I'd love to see the code Sohrab :)

I'd love to see it, as well!