3rd Party software for "Comments"

I use DW to create my site. www.journeyguardian.com I want to add a blog. I wrote it with WP, but hate WP presentation of last post in-first in order. Can’t find a way to change order as I cannot locate CSS doc. I thought I could convert to DW, but cant figure out how to set up “Comments” section to provide exposure on blog same as WP. Suggestions? HELP!!!

I know a few popular sites like to use http://disqus.com/ to add comments into their existing sites. You might want to check it out.