Hello my friends,
I have SEAT IBIZA 2003 5 door Hatchback, 1.4 16 VALVE with 100 hp in it

so I have a some questions and waiting replies and suggestions from you.

1) I have a one key without any buttons on it. So is it possible to buy a new key with buttons on it from ebay.com or somewhere and make it open/lock doors or something else if it is possible

2) when I reach 20km/h or more speed it closes all doors, so i want to disable it and how i can do it

3) so I need to change the main belts ( 2 of them on engine ) I dont know how it is called and maybe give me some pdf manual or something that I can see it. ( in my country SEAT is very rarely car so maybe 1% of all the workmans know how to change it so I need to show them how to do it or I will change by myself)

For this time thats it .

Tk you and waiting you replies.