Dale, a postscript to the last comment. If you are positive that you have really logged out of the KM Users account but are still getting the "logout" link showing up here, then I suggest you try the following as a "when all else fails" procedure:
Once you have successfully logged out, do not use the "back" button in your Web browser in an attempt to return to the STF galleries. Instead, close all instances of your browser, then relaunch it (the same browser) and navigate back to the STF Challenge gallery of interest. Bookmarks will facilitate this.
Note: If you have logged in to the KMU account in two separate browsers (e.g. both Firefox and Internet Explorer), then you may find that after logging out in one of them you will find yourself still logged in if you switch browsers. If you habitually use two or more browsers, then this is something to keep in mind.
Dale, fifth time or fifteenth, this is going to keep happening until you accept and follow two fundamental bits of procedure:
1. You must LOG OUT of the Konica Minolta Users PBase account before doing anything else.
2. Even though they both use PBase, the Konica Minolta and STF accounts work quite differently for their Challenge uploads. For the STF Challenges you must not try to actually log in to anything at all. (The only exception to this is for people with their own, private PBase accounts who can choose to use Upload Method # 2 instead.)
CRITICAL TEST: When you are ready to upload to an STF Challenge, check that the link near the top right of the gallery page reads "login". If it still shows "logout" then you are still logged in to another account, such as the KM Users group.
Once it is showing "login", then do NOT click it again. Instead, go straight to "edit this gallery".