Well for one, your blog is new. It takes time for a blog to increase in page rank. However, due to the domain name of your blog, Im fairly sure that in due time your blog will become popular. Just keep on adding quality content for your viewers so that way you can build a relationship with them. And as usual, dont forget the use of meta tags so that way search engine crawlers can better index your site.
A month old is hardly "aged" at all. Don't expect your pagerank to increase yet. If I am aware, Google only does PR updates every 3 months, so you definitely haven't waited long enough.
It's a new blog. It needs time. I have a blog about that old, I am just tweeting it on twitter usually, it has helped get me more followers.
well Google has updated PR in July itself. also your blog is a 1 month old, so wait for some 3 months more. do good SEO jobs for your blog and keep posting in it.
It could take months and months to get a PR just keep working on it. Sadly there is no way to know how much work needs done before page rank is giving.