I don't have an account there and, for some reason, it keeps saying I am solving the Captcha incorrectly even though I'm not - any idea what's going on?
Hmm, perhaps try sending an email to the admin? There's a contact link on the Metropol homepage. I've had trouble recently signing up to a forum where the Captcha didn't work.
Failing that, I'd suggest putting them in a ZIP file and uploading to a site like MEGA