Creating a wireless access point

Hey,

Basically I'm trying to work out how to set up a wireless access point on my
laptop. My laptop is on a wireless home network and I want to set up a mini
open network. I have been planning on using a USB wireless dongle which can
be used to create an access point and put the dongle in my laptop. There is
already a wireless network card in the laptop and I seem to be having issues
with either the access point working or the wireless working but not both and
I couldn't get the access point to access the internet (via the wireless
card). I tried using both the software that came with the dongle and the
windows network connection tools (to no avail).

If anyone could give me a bit of assistance with this it would be greatly
appreciated.
--
cheers