The wonderful Jenn set up a special gallery for the sketches, so they will be accessable at any time! cool huh! Please keep posting your creations in the gallery for whatever set you use and remember to use " SC07" (or SC08, SC09, etc) in the keywords when you post, to make it a little easier for everyone to find your wonderful work.
The sketches can be found in the Special Collections section under weekly sketch challenge. Here is a link to what has been posted so far:
Card & Scrapbook Sketch Library by SCSketches at Splitcoaststampers
Hopefully this will make the sketches a little more accessible for everyone. THanks Jenn!