this can be done simply.

1- need the structure of the netclassified database
2- simply add the query to add the entries when users register...

... this can be done in 5 minutes, just need to have the db structure, and this can't be done directly, as the tool is not free so we can't provide the proper change if we don't access the database or the install script.

as you requested a paid service, i suppose you will receive the same comment from any coder that is ready to make it so...