How to create a new region in Drupal 6?

Please follow the following steps to create new regions for Drupal 6

ADD the following region information to you theme.info file:
regions[left] = Left sidebar
regions[right] = Right sidebar
regions[content] = Content
regions[header] = Header
regions[footer] = Footer
regions[newregion] = New Region

The Drupal internal system will understand the new region name in the square brackets "[newregion]" and the Description as th e value.
Once created the new region please clear the cache from "Administer > Site configuration > Performance" for reflectiong the changes.

Once followed the above steps you can use the "$newregion" variable to print the particluar block that assigened to this region.