Here’s yes another company that claims they can take you to pagerank7 in a month:

betterthanbacklinks.com

Does it work?

I checked it out. Turns out the system costs $97 a month (ooohh pricey) and for the clams, gives you the opportunity to open your own blog on a Pagerank 6 network. With enough posting on this authority site and the use of relevant anchor text, google might just reward you with good search engine positions.

I don’t know if it can take you to pagerank 7- but I do notice a spike in googlebot activity everytime I used the service to point at a totally new domain.

Give it a go see.