A work around:
If for some reason you are having trouble with the gallery...here's a work around from Cathy:
When You click on submit and it won't take you any further, (normally goes to just a white screen) correct?
go off that page, yup, just leave everything you have done there and go to say the forums! Then go back into the gallery and click on upload once more. When it comes up, on your page it is going to have a little thing that says...."In Queue 1" click on the "1" and that is going to take you to the second page you couldn't get to before. NOW...finish up what is asked of you there, submit and you are good!!!
Make sure you change the gallery to the gallery that you want when you go back into the gallery to finish up! It reverts to Member Gallery at this point !
Sorry you are having difficulties, hopefully it will be fixed soon!