Call to undefined function marinelli_width()

Hi

Today Morning, when i logged into my drupal web-portal. everything was fine.
though once ran Cron.php, showed an updated messege about drupal 6.13.
i did the update as said, and activate the site all over. it went fine.
though, right after i got some info about modules getting outdated like CCK, page title...etc.
i downloaded the latest ones, and copied them into the root folder of my webserver.
updated successfully.
THough, i tried adding disqus module as well..>> right after, was unable to access anything on my site.
just a white screen.
whatever i try to do. ending up in white screen.
and main front page showing only left panel blocks, with this error in center - Fatal error: Call to undefined function marinelli_width() in /home/www/public_html/themes/marinelli/giordani/page.tpl.php on line 106

??

please help,somebudy.

Regards

Gaurav Bagdi