I don't normally allow link drops like that on this forum, but I'm going to go ahead and leave this one up on the condition that this not turn into a big debate. Be VERY cautious before spending any money on a roulette system. There is a lot of solid math behind the opinions of the gamblers who say that roulette cannot be beaten.
I'm going to recommend some reading about roulette and gambling systems too:
Mike Caro's Roulette System #1
The Truth About Betting Systems, by Michael Shackleford, AKA The Wizard of Odds
The Pro's and Con's of the Martingale System by Michael Bluejay