Oracle 10gXE: Schema with Apex

Hello,
I have following Software in use:
Windows2000 Professional,
Oracle 10g XE,
Apex 2.xxx
My Problem:
I have an user with the name "admin".
This user has created all objects (table,trigger, ...) with apex.
So all the created object by the user "admin" will belong to the schema "admin".
I use the import function from apex to import data in tables. Now i want create an other user to import data to the tables, but apex don´t display the tables. Because the tables belong to the schema from "admin".
When I use Import-Function, i can choose an schema. But it is only one schema available (from the loged on user). How can I get Access to the Schema from the user "admin" when I want Import Data? I have set privileges, but the Frontend Apex don´t show affect and I can only choose my own schema, but not that schema from the user "admin".
I hope you can help me.
Thanks.

There is a separate OTN group devoted to XE. You should ask your question there.

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