Firstly, "cash-click" or other such self-promoting links are not allowed here on mobilism; they serve only to annoy users with advertisements and are of absolutely no use whatsoever to anyone but the OP, especially if said app is already "freeware".
Secondly, this app is no longer freeware -- it requires a subscription tied to an account with the service provider, namely VZOChat.
I think pursuing this type of app would simply create another legacy of failed cracks such as we've seen with IM+, which is why I reiterate again and again that internet-powered applications (those applications that require an internet connection to be of any real use) shouldn't be messed with.
Yes, there might be a crack that works for a couple of weeks by exploiting a loophole in the server somewhere but as soon as the service provider patches this loophole (as any company interested in making revenue should) we're back at square one.
The only feasible way of providing any real uninterrupted and/or unlimited service to the end-user would be to keep the service provider out of the picture entirely -- in this case, this would mean substituting everything from the chat servers to supporting infrastructures, up to the standard implied in the original application.
Even if this were at all possible, ask yourself -- would you rather transmit electronic data to an established company, or to a bunch of servers set up by crackers? I've heard of
trojan horses, but trojan horses intentionally and willingly installed by the end-user is something else entirely.