Missing package on mirror

[Russell Shaw <rjshaw@iprimus.com.au>]

Hi,
I did: apt-get update
from unstable, then:

apt-get install php4-pgsql

It gives:

  Reading Package Lists... Done
  Building Dependency Tree... Done
  The following packages will be upgraded
    php4-pgsql
  1 upgraded, 0 newly installed, 0 to remove and 554 not upgraded.
  Need to get 38.3kB of archives.
  After unpacking 4096B of additional disk space will be used.
  Get:1 ftp://ftp.monash.edu.au unstable/main php4-pgsql 3:4.3.3-1 [38.3kB]
  Err ftp://ftp.monash.edu.au unstable/main php4-pgsql 3:4.3.3-1
    Unable to fetch file, server said '/pub/linux/debian/pool/main/p/php4-pgsql/php4-pgsql_4.3.3-1_i386.deb: No such file or directory.  '
  Failed to fetch ftp://ftp.monash.edu.au/pub/linux/debian/pool/main/p/php4-pgsql/php4-pgsql_4.3.3-1_i386.deb  Unable to fetch file, server said 
'/pub/linux/debian/pool/main/p/php4-pgsql/php4-pgsql_4.3.3-1_i386.deb: No such file or directory.  '
  E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

Looking in the mirror directory, there is no php4-pgsql_4.3.3-1_i386.deb.
I tried another mirror too. I downloaded the latest package there and
installed it with dpkg -i. However, whenever i run apt-get, it tries to
install it and gives the same error.

What do i do now?