Problem with exp/imp transport_tablespace=y & CLOBs

All,
I am having a problem with values in a CLOB column when exporting/importing a database using "transport_tablespace" command line option.
Some background:
Origin: 9i Windows
Destination: 10g Windows
Export/import work without warnings. But this SQL command:
SELECT DUMP(CAST(TEXT_VALUE AS VARCHAR(4000)), 1017)
FROM SE_PSOI.SEPROPTEXT
WHERE TEXT_ID = 316161
Gives me from the 9i database:
Typ=1 Len=18 CharacterSet=UTF8: U,n,d,e,r, ,C,o,n,s,t,r,u,c,t,i,o,n
But the following from the 10g database:
Typ=1 Len=54 CharacterSet=UTF8: e5,94,80,e6,b8,80,e6,90,80,e6,94,80,e7,88,80,e2,80,80,e4,8c,80,e6,bc,80,e6,b8,80,e7,8c,80,e7,90,80,e7,88,80,e7,94,80,e6,8c,80,e7,90,80,e6,a4,80,e6,bc,80,e6,b8,80
It appears as if there is some sort of charset issue to me. I've tried working with the environment NLS_LANG value when I export and import (and other text values come through OK - just the CLOB is the problem). After Googling and searching the forums here I am unable to find an answer.
Can someone help me or point me in the right direction?
Regards,
Matthew Lesko

i got an error:
IMP-00003: ORACLE ERROR 1565 encountered
ORA-01565: error in identified file '/u01/app/oracle/oradata/test201.dbf'
my question can we import transport_tablespaces=y with two tablespaces and four datafiles ???
First Check, What is the status of the datafiles.
SQL> select file_name,online_status from dba_data_files where file_name like '%test201%';
also
$ ls -ltr /u01/app/oracle/oradata/test201.dbf

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