Hello John, yes i know how configure... i tried to do in this site and now you can check the .nl domains it works well!
You can follow these steps to register the whois server in the module...
1 - Go to the module control panel and select the option "Servers"
2 - Press "Add Server",
3 - Fill the form with this values:
Server: whois.domain-registry.nl
Format: (leave blank)
Limit Keyword: free
Custom Query:(leave blank)
Timeout: 0
TLDs: nl
4 - Press the "Update" link to save the server
5- Go to the module control panel and select the option "TLD's"
6- Press "Add TLD"
7- Fill the form with this values
Active: Checked
TLD: nl
Press Update Button
Now you can check the availability for nl domains
Please say me your results