Answers:
Get a different internet provider.
You cannot - thats sorted out by your service provider, so unless your prepared to silver your service provider, your stuck beside it. It is possible that your provider may enjoy given you a non-static ip address, which finances everytime you log on it will diverge.
Switch past its sell-by date the modem/router and switch it on again (this is the channel i tuning my IP everytime, but i am not sure can it be applicable to any other internet servide provider). :)
If you own XP later dance to My Network Places next on the side here is a intermingle for Network Connections, click it, consequently select your internet nouns and right-click select properties, a skylight comes up, afterwards double-click 'Internet Protocol (TCP/IP)', and click the 'Use the following IP address' bullet and you can evolution your IP address from at hand, apply change and in that ya run.
well technically you can amendment your IP to anything you want, but it most expected wont work.
if you are at home astern a cable modem or at work within a lattice afterwards you are stuck beside what they grant you.