I don't have any idea about seoquake but I am using nodofollow add-on for detect do follow and no follow links
Using website source code is time consuming process . Goto SEO QUAKE in FF then modules to set nofollow/dofollow .. i am using a great tool to check these called quirk search status . thats awesome
actually i have a another tools for checking these dofollow and nofollow link that is quick search tools . it simply shows the nofollow link.
Right click on icon and select "strike through no follow" and a line will appear through any links that are no follow.