Hello Katie,
Thank you very much for your response. I'm a big Pinboard fan and have been a member for a long time. Your response lead me to an alternative solution that suits me a lot better, so I thought I'd reply in case you or anyone else finds it useful.
I wanted to be able to call up different "groups" of bookmarks - your solution is limited in the sense that it only allows you to call up one group of bookmarks (starred in your example)
By using the extension found here
http://www.alfredforum.com/topic/979-pinboard-search-workflow/
I am able to save different sets of bookmarks, then use the search function to dynamically show a list of bookmarks related to that "group".
Because you're using the search function, it's best to use a tag that doesn't lead to bookmarks that don't belong in that search (eg. a tag group called "google" will show bookmarks that have the word "google" in them as well as bookmarks with the tag "google") I get around this by using tags that begin with the letter "t" (so in the example above I would tag the bookmarks in the group "tgoogle") in order to get the results I'm after.