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Binary package hint: kdebase-workspace

I dont know what is happening
i install somethings of the kde and of kubuntu, and now i cannot reinstall the ubuntu (at step 4 it says that all my disk is "no-assigned space" so i dont want to do nothing because of being afraid of doing something wrong and lossing all the data) i have the typical xp partitions (yes i have xp) "local drive C" and "local drive D"
at the ubuntu instalation i made 2 partitions the / and the swap one
i was runnig out of space for the ubuntu files so i wanted to make win xp partitions smaller ,and ubuntu`s bigger
i tried to resize partitions with "powerquest magic partitions" for windows xp , but it seems to be a error with simethn¡ing related to the units
then i tried to do it with the gparted for ubuntu, and as the ubuntu installer program it says that all my disc is "no-assigned space"
Another error i have is that at the upper right corner wont show my users name
and at every login i get a error saying that there are troubles with the ads servidor or something like that

ProblemType: Package
Architecture: i386
DistroRelease: Ubuntu 9.04
ErrorMessage: el subproceso pre-removal script devolvió el código de salida de error 1
Package: kdm 4:4.2.2-0ubuntu2
SourcePackage: kdebase-workspace
Title: package kdm 4:4.2.2-0ubuntu2 failed to install/upgrade: el subproceso pre-removal script devolvió el código de salida de error 1
Uname: Linux 2.6.28-13-generic i686