There is a you tube two part video of removing the timing belt,idler,tensioner and water pump. Should work for your 05. Here is the urls for the first and second parts.
My 76 year old eyes give me hell when trying to read those very long urls. If they don't work for you here are the basics. The front support bracket in front of the waterpump is removed by taking the front motor mount loose and jacking the engine up high enough to slide the bracket off of those long studs. The studs have to be removed in order to remove the water pump. Takes a 8mm inverted torx or a stud removal socket which slips over the stud past the threads and then can be tightened on the stud to remove it. Hope this helps. Regards.