Post display on blogs page using Blogs MU

I tried to ignore this but it isn't working because I'm a wee bit anal. I am using the Blogs MU theme. I want my blog page to show more than one post at a time but it doesn't. I also want to exclude certain posts (i.e. tutorials) from the main blog page. I've tried another plugin but it doesn't work either. The only way to show an excerpt is to use the "more" tag.

Is there a way to display more than one post on my blog page?