Your Jack is the albino budgie, right? From those pictures I'm not able to properly see the cere. Does it have an overall deep pinkish colour? If so then he is male. From those pics I'm seeing more of a whitish cere, but then again they aren't the best quality.
Storm is a male, his cere already has the mature colour.
RIP sweet Tito (Summer 2008 - January 17th 2013).
You are missed and never will be forgotten.