hi. newbie here. i dont understand what the SEO class settings mean even though there is a brief explanation...i'm stupid lol. which settings should i use (and why, if you have the time)? i dont want to bog down the server as much as possible. also, has anyone gotten it to work on Netfirms? thanks for any insight.

URL rewriting type:
Profiles and groups injection:
Profiles ID removing:
Search User Page rewriting:
SID Removing:
Highlights Removing:
Remove small words:
Virtual Folder:
Virtual Root:
Forum URL caching:
Forum ID Removing:
Activate The No duplictate:
Activate the Zero duplictate:
Strict Mode:
Posts Redirections: