help with website for server

[zimbabwe07]

hey ive put my server website up and its running with xampp but my friends cannot get on the website from their computers and someone told me its something to do with my isp blocking port 80, so i need to know if there is someway to unblock port 80,i have forwarded all the ports needed but is there some way i could get it working so my friends can acess it from other computers,if so how..thank you....i have forwarded my ports my server works people can connect but its the website im having problem with port 80 is not opening and ive talked to my isp and they said to upgrade my package for one that provides port 80 open but i dont have any money atm so i want to know if there is another way..thank you

[Sounddead]

try running your website on a different port like 8080

[zimbabwe07]

umm how do i do that,,is there a guide on how to do that?