Lost shothread.php !!

[محروم.كوم]

Hello Team,
Suddenly, Due to server settings I've lost my vbulletin 3.8.3's showthread.php file (If I'm correct) and hence none of my forum's thread is visible. Heres an example: http://www.theautomotiveindia.com/fo...hread.php?t=82


Please tell me how do I recover my showthread.php file or should I download the whole vbulletin and upload its showthread.php file?

Please reply as this is really urgent.

Thanks. __DEFINE_LIKE_SHARE__