In order to view the guidelines for any magazine featured on this blog, scroll down the page until you see 'magazine guidelines - quick links' in the right hand column, and click on the title you're interested in.
You can opt to see relevent posts in date order, which should help ensure you're looking at the latest information. Don't forgot to read the comments too, if there are any, as these my provide further information and updates.
Alternatively, find any post mentioning the magazine (or subject) you're interested in and click on the link below the post. That will bring up all posts with the same tag.