Logic Platinum 6.3 To Logic Express 7, Import Files Options

[awfulgrace]

Would anyone know if there would be a problem importing files from Logic Platinum 6.3 to Logic Express 7?

A band I play with laid down tracks in a studio running LP 6.3, and I would like to take those files and do some vocal pre-production work at home (w/ LE 7), before going back into the studio. I wouldn't assume there would be an issue with importing them, but I would like to get feedback from the board before I go to the engineer and he starts giving me the run-around.

Thank you!