That might be it! How did you make it private in the first place? Go to your profile options and try that.
You could always host the picture at flickr.com and not link it from your gallery, if you want it to remain private.
go to user CP and click pictures & albums on the left panel.. click the album you want and on the top right there should be an edit album option.
I can see it. It sort of looks like you're using a freshly dug up human skull for a bong in front of a tomb stone. thats gross