I cant get any thing to install trying to install kdetoys or kdeartwork. I am using knoppix 3.3 installed on hard drive . I am new to whole apt-get thing it seems to not want to install xlibcurser-dev below is text print out . any help would be great Thanks.

root@Linuxbox:~# apt-get install kdetoys
Reading Package Lists... Done
Building Dependency Tree... Done
You might want to run `apt-get -f install' to correct these:
The following packages have unmet dependencies:
kdetoys: Depends: amor but it is not going to be installed
Depends: eyesapplet but it is not going to be installed
Depends: fifteenapplet but it is not going to be installed
Depends: kaphorism but it is not going to be installed
Depends: kmoon but it is not going to be installed
Depends: kodo but it is not going to be installed
Depends: ktux but it is not going to be installed
Depends: kweather but it is not going to be installed
Depends: kworldclock but it is not going to be installed
libqt3-mt-dev: Depends: libxcursor-dev but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
root@Linuxbox:~# apt-get -f install
Reading Package Lists... Done
Building Dependency Tree... Done
Correcting dependencies... Done
The following extra packages will be installed:
libxcursor-dev
The following NEW packages will be installed:
libxcursor-dev
0 upgraded, 1 newly installed, 0 to remove and 740 not upgraded.
49 not fully installed or removed.
Need to get 0B/29.2kB of archives.
After unpacking 139kB of additional disk space will be used.
Do you want to continue? [Y/n] y
(Reading database ... 113718 files and directories currently installed.)
Unpacking libxcursor-dev (from .../libxcursor-dev_1.0.2-4_i386.deb) ...
dpkg: error processing /var/cache/apt/archives/libxcursor-dev_1.0.2-4_i386.deb (--unpack):
trying to overwrite `/usr/X11R6/include/X11/Xcursor/Xcursor.h', which is also in package xlibs-dev
Errors were encountered while processing:
/var/cache/apt/archives/libxcursor-dev_1.0.2-4_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
root@Linuxbox:~#