Thank you so much for your fast reply aker. Ok, I tried to copy the .MSU files inside the .\w61-x64\glb folder and replaced the StaticUpdateIds-w61-x64.txt file inside the .\static and it worked just fine. The new ISO file works like a charm and now is installing 106 updates after a new clean windows 7 installation.
Again, thank you...........I will try with a Windows 8 installation later.
Alx