PageRank is assigned immediately. You just can't see it. You'll have to wait until at least the next public PageRank update and maybe even to the one after that before you can see your pages' PageRank.
SEO has nothing to do with PageRank. PageRank is a mathematical formula that quantifies link popularity. It does not indicate whether a site is optimized. It does not indicate whether a site is any good.
Submitting to directories isn't going to help your rank much unless you are targeting minor keywords so don't expect that to do a lot for you. You should still do it for a new site to get it started, though, as you need to start somewhere.
RSS feeds don't really affect SEO. But still use them as you visitors may like them and happy visitors are a good thing.
Keep adding fresh content and promoting your site. Patience is key as nothing happens quickly with SEO.
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He's No Good To Me Dead
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since May 2006