How to solve imp?

 Dear Sir or Madam

My customer environment

The old one

1. O.s. is Window2003 Sp2 Enterprise Edition Service Pack 2

2. Database is 9i Release 9.2.0.8.0.

3. Oracle 9i use AMERICAN_AMERICA.WE8ISO8859P1 at regedit

The new One

1. O.S. is Window server 2008 Enterprise 64 bit.

2. Database is Oracle 11g Release2 Standard Edition(11.2.0.3) 64 bit

3. My customer exp data from user coop_saving.(Oracle 9i) 

4. Oracle 11g use AMERICAN_AMERICA.WE8MSWIN1252 at regedit and use set 

NLS_LANG=AMERICAN_AMERICA.TH8TISASCII

My step that I did

The new one

1. CREATE TABLESPACE tscoop

  DATAFILE 'c:\app\administrator\oradata\coop\tscoop.dbf' SIZE 10240 M;