HOW WILL GOOGLE FIND THE REST OF MY SITE IF I ONLY SUBMIT MY HOME PAGE?

You actually don't have to submit your home page in order for Google to find it. Here it is, straight from the horse's mouth:

"Google is a fully automated search engine, which employs robots known as 'spiders' to crawl the web on a monthly basis and find sites for inclusion in the Google index. Since this process does not involve human editors, it is NOT necessary to submit your site to Google in order to be included in our index. In fact, the vast majority of sites listed are not manually submitted for inclusion. "

So what should you do? Make sure there's a link to your site from another page on a site that's already in Google's index. The other pages will eventually get listed but it may take some time as Google tends to add inside pages more slowly than index pages. "Google's robots jump from page to page on the Web via hyperlinks, so the more sites that link to you, the more likely it is that we'll find you quickly."

Of course, that does not mean you should use any artificial interlinking of the websites. Do not link to sites that are in no way associated to the theme of your site nor to those that even slightly resemble FFA lists or low quality portals. Though it might get your site indexed, it will certainly not contribute to the relevancy of your website. Think about the user and not the search engines! The links should be quality links, revealing the destination they lead to and the useful information it will provide the user.

Another approach to consider in effort to get in Google's index is to get your site included in ODP, Netscape's Open Directory Project (DMOZ). Often times once your site is included in ODP it will eventually get indexed by Google as well.