dikymon

Hello everyone... Tried searching for this problem and a vLite FAQ but to no avail so im trying my luck here. I almost feel dumb for saying this, but i cannot seem to make vLite 1.0 work properly. What i have done is point vLite to my Vista DVD - it then copies the dvd to a temp directory. I then customize it and apply + rebuild which takes some minutes. When i then create the ISO the size of it is always around the same as the original dvd, no matter what i seem to do. I even tried to install it and it was still the full version, the unattended part worked though. I feel as if im missing something fundamental here?