Creating Data Mining PL/SQL Package in SQL Developer

hi,
i have built a model and want to create a PL/SQL package.
in SQL developer, i launch a "New Gallery", select "All Items" from the drop-down menu, and click on "Database Objects". but in the right window pane, i am not able to see "Data Mining PL/SQL Package" in the options.
can somebody please tell me how to fix this?
thanks!

To verify that Oracle Data Mining PL/SQL Package extension is properly installed, please do the following:
Select Menu Help->About, click on "Extensions" tab. Look for "Oracle Data Mining PL/SQL Package" in the Name column ( you can sort it).
If it is, please make a note of the version installed and post it here as well as the SQL Developer version.
Just to clarify, you don't see "Data Mining PL/SQL Package" item in the "Database Objects" at all or is it grayed out?
Thanks

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Message was edited by:
tiffer

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Copyright (c) 2009 Microsoft Corporation. All rights reserved.
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Copyright (c) 1991, 2010, Oracle. All rights reserved.
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LOCAL SERVER
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LOCAL SERVER
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Instance "orcl", status READY, has 1 handler(s) for this service...
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(ADDRESS=(PROTOCOL=tcp)(HOST=PaulK-PC)(PORT=51451))
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