I hope you are having a great trip. if you have already migrated your photoshop.com account to Revel, then you will not be able to upload anymore photos there. if you have not migrated. let me know and I will investigate.
You can, however, begin uploading your travel photos to Revel and share them from an album there.
if you can give me an indication of what you have done so far with migration, I can get you more information. Also, what browser are you using and what operating system?