I am running a marketplace site where product posting urls are prefixed with the seller's name as set by a token - [seller-name]/[node:title]

If the seller changes their name, then their product posting urls start to break down. I need therefore, an easy way to automatically update the sellers product postings urls to reflect the name change.

This issue appears somewhat similar to http://drupal.org/node/1678250 , however I don't really have the technical ability to adopt their solution.

A quick look at Rules didn't appear to offer an answer, so is there a straight forward approach to this, which I could use.