The point of blogging is expressing out your own ideas about a subject. Yes, I am against auto-blogging. Because first of all, the content isn't really yours. Without originality and uniqueness how can visitors enjoy their stay? Anyway, I just think that you have been awarded PR2 because of the content. But haven't really indexed the pages because some of it is having problems... I think.
you need unique articles , find some tools to change the content of your articles else your autoblog is 0, and after that submit each link into digg/twitter, that should give you a boost
To me auto-blog software is not a good idea but if you spend more time with the auto-blog content by bookmarking, it may be better.
my personal suggestion, use auto bloging software wisely - else end of the day you will loose money on domain name/web space/time. Duplicate content never gives you good ranking - and almost all autoblog plugins generate duplicate content or non-marcov algo supported spinned content for your blog - which is not good for google to index.