So I have these headlights

http://desmond.imageshack.us/Himg444/scaled.php?server=444&filename=parabolicsonepieceto0.jpg&res=landing

What kind of bulbs do i need ?

H7? for low beam and what for high beam

cause i accidentally ordered H4 ... from powerbulbs !!!!

Let me know ASAP

H7 - low beam
H1 - high beam
Ba9s - parkers

are these the right ones ?

http://www.powerbulbs.com/product/philips-xtreme-vision-h7-car-headlight-bulbs

are these the right ones ?

http://www.powerbulbs.com/product/philips-xtreme-vision-h7-car-headlight-bulbs

It says H7, so yes.

How do you change the bulbs when it comes to parabolics ? the process

Similar to normal ones. Remove the screw cap on the back, remove the rubber cover, remove the wiring connector (with the battery disconnected) undo the spring clip, pull globe out and remove it from the black plastic globe holder.

Fitting is reverse of removal.

Personally, I've never disconnected the battery to change out globes, unless you know something I dont....

One Tip though, never handle the globes with your fingers, use tissues or clean rags if you need to touch the globes, you can leave an oily residue on them which will burn onto the globe...
Clean with metho, if you get anything on them....

Edit: If you worried about the power, pull the fuse instead..

Personally, I've never disconnected the battery to change out globes, unless you know something I dont....

One Tip though, never handle the globes with your fingers, use tissues or clean rags if you need to touch the globes, you can leave an oily residue on them which will burn onto the globe...
Clean with metho, if you get anything on them....

Edit: If you worried about the power, pull the fuse instead..

thanks mate ... i was questioning the disconnect battery thing as well, are there any instructions or diagrams anywhere