type of the backlinks that is. there's no point of getting backlinks from PR 0 websites only if you want higher PR for your website.
you need to build backlinks on do follow blogs and forums, don't spam create interesting posts and responses
backlinks from relevant websites, but don't forget directories either. the more prominent the better.
Well.. All you have to do is build some strong backlinks to your site.. Oneway links are much better than the reciprocal links. Optimize your site.. and your site'll get a good PR in next update