You Can Get Page Rank If You Have Unique Contents!
Although PR does not matter when it comes to the Search Engine Results Positions or what we call "SERPs." Appending original contents in your pages gets some value and the internal backlinks as time goes gets some value and eventually will get a Page Rank.
NoFollow Links Could Be Futile
This myth could either be true or false in the field of using anchor text links when you are commenting or leaving backlinks to several websites and blogs. Nofollow links are not that useless but it is just that the value is lesser than the do-follow links.
If You Think You're Sandboxed by Google...
If your site is not yet indexed by Google after a week or more, it’s not that sort of sandboxed at all. The reason is that Google haven't visited that site or page, nonetheless Google doesn't index every website or page it visits. It may take some time, or you should submit the requirements like sitemap, feeds, etc.