Visiting Special:UploadWizard in any skin that's not Vector results in the following JS error:
discussListItem is null, UploadWizardPage.js line 14
and the wizard doesn't show up at all.
http://commons.prototype.wikimedia.org/uwd/Special:UploadWizard?useskin=chick
http://commons.prototype.wikimedia.org/uwd/Special:UploadWizard?useskin=standard
http://commons.prototype.wikimedia.org/uwd/Special:UploadWizard?useskin=cologneblue
http://commons.prototype.wikimedia.org/uwd/Special:UploadWizard?useskin=modern
http://commons.prototype.wikimedia.org/uwd/Special:UploadWizard?useskin=monobook
http://commons.prototype.wikimedia.org/uwd/Special:UploadWizard?useskin=myskin
http://commons.prototype.wikimedia.org/uwd/Special:UploadWizard?useskin=nostalgia
http://commons.prototype.wikimedia.org/uwd/Special:UploadWizard?useskin=simple
Version: unspecified
Severity: blocker