error compiling rhythmbox

hi. i can't compile rhythmbox 0.5.8. i installed gstreaker and it works.
when i type "./configure" in the rhythmbox directory, i get this error:

checking for gstreamer-0.7 gstreamer-libs-0.7
gstreamer-control-0.7 gstreamer-gconf-0.7... Package
gstreamer-0.7
was not found in the pkg-config search path.
Perhaps you should add the directory containing `gstreamer-0.7.pc'
to the PKG_CONFIG_PATH environment variable
No package 'gstreamer-0.7' found
checking for gstreamer-0.6 >= 0.6.2 gstreamer-libs-0.6
gstreamer-control-0.6 gstreamer-gconf-0.6...
Package gstreamer-0.6 was not found in the pkg-config search path.
Perhaps you should add the directory containing `gstreamer-0.6.pc'
to the PKG_CONFIG_PATH environment variable
No package 'gstreamer-0.6' found
checking for gstreamer-0.5 >= 0.5.2 gstreamer-libs-0.5 >= 0.5.2
gstreamer-control-0.5 gstreamer-gconf-0.5...
Package gstreamer-0.5 was not found in the pkg-config search path.
Perhaps you should add the directory containing `gstreamer-0.5.pc'
to the PKG_CONFIG_PATH environment variable
No package 'gstreamer-0.5' found
configure: error: GStreamer not found, or too old version found

I tried setting the PKG_CONFIG_PATH enviroment varialble to the pkgconfig
directory in the gstreamer sourcefolder and it still doesnt work.
please help.

I have no idea what that package is but I strongly suggest you carefully
read any included README or INSTALL files that came with it. Also, when you
installed gstreamer did you do it as they said to? Again, read those
READMER and INSTALL files also, in fact read anything in ther source dirs
for eaither package that has a file name in all caps, its usually important
stuff and I have found that in a Linux environment you must actaully read
these files, to not do so will cause you no end of head scratching
wondering why it didnt work right.
Eric