How can I determine the version of installed 64studio

$ dpkg -l |grep 64studio

Your output should look something like this...

ii 64studio 2.1 64 Studio dummy package ii 64studio-apt 2.1 64 Studio APT data ii 64studio-skel 2.1 64 Studio customization package, gnome-syste ii 64studio-themes 2.1 64 Studio artwork and themes ii 64studio-utils 2.1 64 Studio scripts ii blender 2.42a-4.64studio1 Very fast and versatile 3D modeller/renderer ii bootsplash-theme-64studio 0.3 The bootsplash theme 64studio ii casper 1.77+debian-7.64studio.com Debian Live initramfs generator ii cdrdao 1.2.2-6.64studio1 records CDs in Disk-At-Once (DAO) mode ii gcdmaster 1.2.2-6.64studio1 Gnome GUI for cdrdao ii gnome-media 2.18.0-2.64studio1 GNOME media utilities ii gnome-media-common 2.18.0-2.64studio1 GNOME media utilities - common files ii gstreamer0.10-plugins-bad 0.10.4+cvs2007.04.30.64studio1 various GStreamer plugins ii hal 0.5.8.1-9.64studio1 Hardware Abstraction Layer ii kino 0.92-3.64studio1 Non-linear editor for Digital Video data ii libgnome-media0 2.18.0-2.64studio1 runtime libraries for the GNOME media utilit ii libhal-storage1 0.5.8.1-9.64studio1 Hardware Abstraction Layer - shared library ii libhal1 0.5.8.1-9.64studio1 Hardware Abstraction Layer - shared library ii libportaudio2 19+svn20071207-0.64studio1~etch1 Portable audio I/O - shared library ii librubberband-dev 1.0.1-0.64studio2~etch1 Development file for libclxclient ii librubberband0 1.0.1-0.64studio2~etch1 X Window System C++ access library ii nspluginwrapper 0.9.91.4-3.64studio1 A wrapper to run Netscape plugins on other a ii python-apt 0.7.3.1.64studio1 Python interface to libapt-pkg ii xserver-xorg-input-evtouch 0.8.7-3.64studio2~etch1 Touchscreen-Driver for X.Org/XFree86 server

$ dpkg -l |grep 64studio

gives:

ii 64studio 2.1
ii 64studio-apt 2.1
ii 64studio-skel 2.1
ii 64studio-themes 2.1
ii 64studio-utils 2.1

so now i know its 2.1 i've installed !

thanks Jürgen