You can adjust the cables using those orange buttons on them near the transmission end of the cables. I had to do it after my transmission swap on my 02. I forget the exact procedure as to what position the shift lever should be in when you press them, but if you search the forum you should find it. I think you are suppose to hold the lever far left and depress the button on that cable for horizontal movement, and in 4th gear on the other cable. That could be wrong though.
I know its easier if you have 2 people, one inside and one outside. I only had myself so I made use of some bungie straps to hold the shift lever in place.