Pheww! I was shocked to learn that my photoblog was down with HTTP500 error. Tried various things to recover including disabling all plugins but nothing worked.

So, I decided, to backup my DB as well as all my photos and original WP files. Download the latest WP and have a clean install. After all basic settings is done, I restore back my DB and viola! all is back to NORMAL

Alhamdulillah