Hello, I've tried everything to create a wifi hotspot from my pc. I have no idea how to do it on linux mint 15 cinnamon. I can easily create an ad hoc network but wifi is another matter entirely.

Can one of you help me out with this? Any feedback would be greatly appreciated.
Thanks.

So you're trying to create an access point? I'm doing a similyr thing, so perhaps I can give some tips. First check whether your wireless networking card supports access points (master mode). Go to a terminal and type in "iw list". Then look for something along these lines:
To host an access point you would normally use hostapd. So see, if hostap is installed. If not then install it. Most of the work I've done has to do with command line, so I'm afraid I won't be too helpful with GUI elements. You will also need a working dhcp server - let it be that of your router, if you're creating a L2 bridge (currently my nightmare) or you can host your own dhcp server, if you're using NAT.

Here's a nice guide to get you started:
http://machineawakening.blogspot.com...with-mint.html

It uses the NAT approach, so it should be the easiest.