Thanks to all.
The information is just what I was looking for to customize the syntax file exported.
Now I have to change some things and probe it (probably I couldn`t start in 3 weeks, but after you have notices from mine).
I work with SPSS often (and during several years). I am not a SPSS expert but an advanced user (with limited knowledge of SPSS syntax, but I understand more or less its logic). My experience as php programmer is very low (I Use one time the patch, but I still don“t feel comfortable with it).
I agree with Palim that most of the things are "my taste" but probably are more common taste (and useful) than the current config

(If I put things in the tracker I'll try to think in a common user and not only in my taste and let the very personal customization for my local files only)
Some ideas to work around (based in build 5228):
* Customize TypeMap array (lines 42-68): if you export as answer codes (as numbers) instead of answer text, then it is better to set the spssType to 'N' (of course this nor affect to date or short text variables, nor if your codes are alphanumeric). (This is important because if you change the type of a variable inside SPSS, you loss all the variables labels).
My opinion: people that works with SPSS normally use codes of responses (not text) and put the text as labels.
* use $question_title as SPSS name of the variable and $question_text variable as SPSS label of the variable