I did that on 2005, same engine except the flex fuel part, which has nothing to do with engine mount. According to the post that I wrote after the job, (copying and pasting)
5) To remove front motor mount,
5a) 2 sets of O2
sensor brackets are attached to the motor mount. Disconnect and cover them with aluminum foil and get out of way. (Obvious)
5b) Disconnect 2 mount-to-engine bolts. The bolts are in line of sight and this is not difficult at all. Had I elected to remove Y-pipe, the motor mount would just drop out. But I didn't and here is the price I paid.
5c) Disconnect cooling fan housing from radiator, and move to the driver's side. One electrical connector, one harness bracket, and 2 bolts, if I remember correctly. (Not difficult. It took me about 30 minutes at night.)
5d) Lift engine by engine oil pan.
5e) Slide motor mount between engine and radiator toward driver's side while lying on the back under the car. It seems impossible but can be done. Try to remember how it came out so that putting a new one will be quick and easy. If not, you will eventually figure out.
It was the first time I did that. No writeups in this forum helped me, and I had to figure it out by myself. What I am trying to say is you can do it.
EDIT: By the way, you have to remove the top torque strap prior to this.