404 errors with Squeeze security

[Lisi Reisz <lisi.reisz@gmail.com>]

For about the last half hour, I have been getting the following errors when 
trying first to install, then to repair, amarok-trinity:

Err http://security.debian.org/ squeeze/updates/main mysql-common all 
5.1.63-0+squeeze1
  404  Not Found [IP: 212.211.132.32 80]
Err http://security.debian.org/ squeeze/updates/main libmysqlclient16 amd64 
5.1.63-0+squeeze1
  404  Not Found [IP: 212.211.132.32 80]
E: Failed to fetch 
http://security.debian.org/pool/updates/main/m/mysql-5.1/mysql-common_5.1.63-0+squeeze1_all.deb: 
404  Not Found [IP: 212.211.132.32 80]

Suggestions?  Explanations?  Remedies?

Or does it just need time?  I.e. patience?  The site itself is not down.

Lisi