Hi Flavel,
1. Yes. You can write your copy in Word and then paste it into the SBI! editor to build your site.
2. Their functionality does not support a forum at this time so you'd have to build it on a separate platform and link it to your SBI! site. For example you could go to
www.ezboard.com and get a free board and then link it to your site.
3. Adding pictures is a matter of following the instructions. You simply go to the Image Library, upload your pictures to the SBI site builder and then they show you how to add them to your site.
4. Yes, what you would do is purchase the other domain names with the additional extensions (.net, .org, etc.) SBI! has a service called Name Park It! where you can buy additional domain names for $9.95 and then redirect them to your main site.