Writing Internet Drafts on a Macintosh

I am trying (trying is the key word) to write Internet drafts on a 
powerbook using MS Word with the template from the IETF web-site, 
then using a PC to convert Word to text per the instructions.
Is there a better way to write IDs on a Mac?

Also, why isn't HTML an accepted format for Internet Drafts, pretty 
much everyone on the planet should be able to read an HTML file (even 
using Lynx on a terminal)?
Regards,

Bora Akyol