No, you don't have to load again. I'm sure you're already at peak creatine muscle saturation levels, seeing you've been on for the past 2 months.
Next time, you're going to buy a premixed creatine drink, go with this instead Scitec Creatine Express It's the same thing basically, as Cell Tech, but cost a lot less and Scitec uses much higher quality products than Muscle Tech. Give them a try. Definitely worth it!