Blocked updates caused by needing to install extra packages?

First of all i have to say that i am not sure if this is the right place since the bug i am reporting appeared in Kubuntu. But i do not seem to find Kubuntu in launchpad.

Yesterday i checked the update manager and i had 6 blocked updates (they were present since i installed the new version, something like a week ago), 4 of them were about the kernel and 2 for amarok. I did not seem to be able to unblock them, i even enabled unsupported and pre-released updates, just in case.So i went to the terminal and used sudo apt-get dist-upgrade to check what could be happening. My surprise: It updated straight away, no packages held back or anthing.

The version of Kpackagekit is ; kpackagekit 04-0ubuntu 8.01
Version of kubuntu; 9.04 (32 bits)ubuntu-bug kpackagekit]

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alba@alba:~$ sudo apt-get dist-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following NEW packages will be installed:
  libqtscriptbindings1 libtag-extras0 linux-headers-2.6.28-13 linux-headers-2.6.28-13-generic linux-image-2.6.28-13-generic linux-restricted-modules-2.6.28-13-generic
The following packages will be upgraded:
  amarok amarok-common linux-generic linux-headers-generic linux-image-generic linux-restricted-modules-generic
6 upgraded, 6 newly installed, 0 to remove and 0 not upgraded.
Need to get 48.3MB of archives.
After this operation, 181MB of additional disk space will be used.
Do you want to continue [Y/n]? y

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Then everything went fine and it got upgraded without any further issues