First off it looks for the files in the destination directory for the files to copy inorder to ensure that the files were copied. if you looked at the source for the files, they are obviously going to be there. defeating the purpose.
I assure you that the link on whatever page to the spanish shrink is not a virus. it contains very similar code to the one on the first page. i would recommend using the version on the first page because it has been tested for other languages and is known to work.
You may be safe if you chose overwrite when you made the transform file.
No promises made on that as I have not tried this method.
I used a clean Virtual PC.
This is correct and the recommend method.
IN GENERAL: if you get an error 25003 that means that there is an XML file missing that is required for setup. If you check the log, Office_Task(000X).txt it should give you the location for that file. copy it manualy and rerun shrink.
@puntomax: send your log files. maybe we can figure it out from those.
im planning on making some changes, but havent had the time. hang in there for a couple of weeks.