When I try to upgrade TNG, I get a error:Update has expired

[Belinda Frick]

To upgrade your TNG your subsription must be up to date. If your
expiry date is 'earlier' than the update release date then you
will get this error.

For example if the TNG update was released in May 2010 and your
TNG subscription expires April 2010, you will get this error.

Solution: renew you TNG subscription and upgrade the TNG thereafter.