help with easy build oscam needed

hi
i am trying to build oscam ver 7004
i can get it to build no problem but for some reason i get no gui as per tuto to change libusb etc
when i follow tuto and press 0 as per instructions i get the follow flash up
Select target (0-7)? 0
OSCam config
Usage: config.sh [parameters]

-g, --gui Start interactive configuration
-s, --show [param] Show enabled configuration options.
Possible params: all, addons, protocols, readers
-e, --enabled [option] Check if certain option is enabled.
-d, --disabled [option] Check if certain option is disabled.
-v, --oscam-version Display OSCam version.
-r, --oscam-revision Display OSCam SVN revision.
-l, --list-config List active configuration variables.
-m, --make-config.mak Create or update config.mak
-h, --help Display this help text.
what am i missing thanks
foz

thanks for quick reply and for your great tuto
deleted old easybuild folder ftp new folder over after adding dialog package via terminal
i still get no gui my output:
root@silvosteam:~# cd easybuild
root@silvosteam:~/easybuild# chmod 755 make.sh
root@silvosteam:~/easybuild# ./make.sh
cat: ./oscam-config.h: No such file or directory
SVN OFFLINE try MIRROR...
MIRROR IS ONLINE...

#####################################
OSCam-Easy-Script v1.0.0e
Main-Menu
#####################################
0) OSCam-Setup
1) GET OSCam-SVN/UPDATE
2) BUILD SINGLE-OSCam
3) BUILD ALL OSCam's
4) GET TOOLCHAIN(S)
5) CHECK LINUX PACKAGES
6) EASY-INFO
7) EASY-SPECIALS
*) EXIT

Select target (0-7)? 0
./make.sh: line 1422: ./config.sh: No such file or directory
cat: ./oscam-config.h: No such file or directory

#####################################
OSCam-Easy-Script v1.0.0e
Main-Menu
#####################################
0) OSCam-Setup
1) GET OSCam-SVN/UPDATE
2) BUILD SINGLE-OSCam
3) BUILD ALL OSCam's
4) GET TOOLCHAIN(S)
5) CHECK LINUX PACKAGES
6) EASY-INFO
7) EASY-SPECIALS
*) EXIT

Select target (0-7)?

i get same output using v1.0.0d line 1422

thanks again
i got gui working but getting build errors now so i take it the board is having problems
one other question if i may
if i do it the old fasioned way to compile via terminal to get stable version i would use this
svn co http://streamboard.gmc.to/svn/oscam/tags/1.10 oscam-1.10
but if i wanted svn7004 what would i put thanks?
big massive thanks
foz