Seems to me, from just a quick look, its the same as using a proxy server, that company probably has a bunch of pre-loaded proxies and the program will change the to different ip address that you want or if it jumps after so much time to another ip. If this is the case Like with all Proxy servers you have "DNS LEAKS" which can and will cause you to get linked. Read up on DNS Leaks.
how would ebay view if i signed on using this software. I am not using it to hide my ip address from ebay, but other sites while I am also on ebay. Would this cause any problems with my account? Thanks