Nice to get an answer in spanish, but i'll sitck with English just in case someone else gets gets help with my solution.
Luckily I found an answer in some other post, well i kinda knew it but didn't know how to get there, and it wasn't so simple:
1. Login in text mode, meaning when LILO appears choose "linux tui".
2. Login as root
3. Edit the xorg.conf file, in the post it said: mcedit /etc/x11/xorg.conf and add "HoryzSync 30-55" section.
And this was the tricky part, until number 2, everything was cool, but then I entered the command (mcedit /etc/x11/xorg.conf) and a big warning said something like "this file can't be opened for reading", after that I noticed that if you just enter mc instead of mcedit you can simply browse to the file, so the command was "mc /etc/x11/xorg.conf". Another bump, although i saw the file list and commands (file, edit, etc) like i was on a browser I didn't know what to do with them, then i noticed the mouse was working, so i picked the xorg.conf file and pointed the mouse to the "edit" command and bingo! i just searched the "horySync" line, changed the values to 30-55, I restarted and it was great, i'm still dealing with some unfinished issues with Winxp so i'm writing from there, but i'll keep exploring.
And why the ALMOST SOLVED tag? because i'd like to try if i can run my machine with closed nvidia drivers, so my new question, how can i do that from vector linux, and get back to old configuratios in case something messes horribly?
PS I picked VL 5.9 because i wanted to try kde4, and i read in a review that in VL it ran smoothly in an old machine like mine, and since the only one with it was SOHO and the only downloadable was 5.9 i gave it a try, hence another question, should I install VL 6 would it be possible to install KDE and not turn my machine into a toast?