Hi,
as far as I know the only trial version you can try out for 60 days is
Office 2003 standard edition:
http://www.microsoft.com/office/editions/prodinfo/standardtrial.mspx
However, the standard edition does not include MS Access...so it would not
be of any use to you.
If you need Access then either purchase Office Professional or the
standalone application. If you are a student you might qualify for getting
the Office Academic edition which is exactly the same as the Professional
Edition just for a cheaper price through licensed retailers.
HTH
Good luck