How can I get the free "N" letter in the HUS format? For some reason I am not able to get it in the format I need.

You might contact the site at the link at the bottom or do a PM to test. I contacted the site through the PM way and I got a responce and help with a design.

When I tried, the HUS choice gave the .exp and the EXP gave .dst - the others I looked at were seemed ok. I sent a note with the 'Contact Me' link and downloaded another format which I will convert with Wilcom Trusizer if I don't find the .hus fixed before the letter goes off the freebie list.
Tajima and Wilcom are both free so good luck to you.

If you download Tajima you can convert your patterns. It's free. www.tajima.com