Transfer Data To SQL Server 2008 / Arabic Data Showing

I am trying to transfer data from Oracle database table into another table resides in a SQL server 2008. A database link is already set, and data can be selected/queried using

select * from a_table@db_link

the thing is when trying to insert Arabic data from Oracle to a SQL server table

insert into a_table@db_link values(
'N''some data in Arabic'' ,
'11-oct-00',
'some data in English'
);
commit;

its inserted alright, but when we try to display the data it shows like this instead of displaying Arabic, the english data is alright, but also date show as garbage?!!

when trying to insert arabic data directly through SQL server its fine though.I suggested that we transfer data through ODBC to flat files like Acess and then to SQL server but the team rejected it since they're going to do it daily and the data is huge( we are talking more than 28000 records).