You should listen to the others, especially the part about seeing your
DBA. But anyways:
There are often problems using export/import to go from a higher to a
lower version. The problems arise if new features of the higher
version are exported, which is likely if you are using defaults. The
normal thing for a DBA to do is downgrade the higher version
temporarily. But you might not have to. Try this:
In the server database, create all the tablespaces and tables
beforehand, using the proper parameters. Get a book about Oracle if
you don't know the parameters. See the Oracle Utilities manual for
the exp/imp parameters.
Export the schema with compress=N.
Import with ignore=y.
Figure out all the errors and correct them.
This is not the best way to do things, but implicitly assumes only
simple things were migrated from access and you may be able to fumble
through it, learning much.
@home.com is bogus.
It takes one to know one: