Finally i was able to enable the Flickr integration in my site. I wrote the code for this about one year back and worked fine in my local machine. But the hosting service did not have PHP5 and PHP CURL which was required for the code i wrote. Actually i did not have to write much code thanks to flickr_api.php Rasmus has donated.
http://toys.lerdorf.com/archives/34-Flickr-API-Fun.html

Any way many thanks to my host for moving to PHP 5 and enabling PHP CURL for me. N