OK, I got the "coy" thing now.
Custom First Page:
See how the first page of this forum looks? They call it "Page One". It is at
http://www.webproworld.com
See how the first page of your site looks? It is at
http://www.nacz.net
Even though you both use phpBB, they have added a custom home page, your site uses the default phpBB forum page.
Creating this custom first page would change the possibilities for
SEO. It's use is just to make the site look different from other sites while adding functionality. WebProWorld features interesting posts on their front page.
Inbound Links:
Here I meant the number of links you have pointing to your site from other sites.
You can search this site or google for "inbound links" to get a better understanding of what they can do for you.
When used properly, they can have a profound effect on your positioning in the SERPs (Search Engine Results Pages; the listings you get when you search for something).
Popped:
That's just American slang. I meant when you use "shady" ("risky", "black hat", etc.)
SEO techniques (those techniques that violate Google and other search engine's terms) you run the risk of getting your site banned from those search engines.
If you are just starting out, stay away from these techniques until you learn more.
Good luck.