JFJ was drafted in the second round by the Oilers in the 2003 NHL entry draft because of his size and his physical game. Jacques played 7 games in the NHL with the Oilers in 2005, but never stuck. Jacques continued to play a majority of his games in the AHL until the 2009-10 season where Jacques played the season in the NHL. Well, when he was healthy.
Through his short career, Jacques has had two back surgeries and has never played the same since. It looked as though Jacques was always playing worried that he would re-injure his back with any hit. Jacques does have the size and ability to be the player that Kevin Lowe saw in him and spoke of often, but it will be up to him what he will make of his career.
Numbers have not yet been released, but I would bet money (note I rarely bet money because as soon as I say that, it doesn't come true) on this one year deal being a two way contract where Jacques would receive a significantly lower salary for playing for the Syracuse Crunch in Syracuse NY. While with the Oilers, his last two years were one way deals, but it seems fairly clear that despite most of the Oilers team not living up to their contracts, Jacques was one of the worst offenders. Jacques has 9 goals and 8 assists in 160 games with the Oilers.
UPDATE: I should buy a lottery ticket before I get home, capgeek has the numbers online now. JFJ will make $105,000 AHL and $650,000 NHL.