Here are the galleries for the pbase account name stfchallenge, i.e. whose full address is http://www.pbase.com/stfchallenge.

(Note that the URL you can see in the Address Bar above, "stfchallenge.com", is not currently used for Challenge entries.
If you do visit http://stfchallenge.com you will find, instead, a list of useful direct links to STF Challenge pages and threads.)

If you do not see "edit root gallery" you will need to "logout" (up at the top right) and then login again using the user name stfchallenge,
and entering the password (see dpreview challenge thread for the password). In this case you will then need to refresh your browser screen to see the "edit..." link.

Click on the actual gallery in which you want your photos to go; DO NOT click on "edit root gallery" in order to upload images.