[support] Possible to set default path for certain node types?

Hello, I'm running a site with Drupal 5.1 and I have a few custom content types. I've got it setup so for certain paths, there are specific themes that apply. Is there a way to set a default path for certain content types? At least for a start and then the number after that? For example, childrens/node/135 rather than node/135. - jody