How do you track ip address on myspace

I'm not sure what you mean by "on My Space". Maybe they have their own tracker. I don't know much about My Space.

There are a lot of IP trackers on the 'net. Here are a couple that I googled.

Arul's IP Address Tracking Program - Track or trace any IP address and find the ISP that owns it

IP Address Locator - Enter an IP address to find its location - Lookup Country Region City etc

ARIN: WHOIS Database Search

They won't get you to the end point. Usually, all you'll get is name of the ISP and possibly the state or region of the country/world. For example, a search of my IP address shows AT&T in Richardson, TX. But I'm not in Texas!