@riq
Me again, looking out for the newbies. You may want to take a look at the installer script, because it currently can only be run when the user's current working directory is the same as the script. This causes a lot of confusion, which gets posted to the mailing list about once or twice a week.
I think you could change the paths in the script from relative to absolute, using any of the standard ways of determining the users current working directory, and appending it the paths. For example, line #128 of the install script:
copy_files templates/cocos2d_app/ "$DST_DIR"
This only works when the script is the current working directory. If you change this from a relative path to an absolute path, or a path relative the current working directory, this would allow the script to be called from a high level directory.
More info on shell script absolute and relative paths: