First thing to look for on this re-install would be a blueprint or diagram that shows the existing jack numbers and see if you can determine the layout. Most often there are sheets leftover from the original cutover that show the jack locations. Common place to find them is tucked behind the switch or in the front of the cabinet. With a little bit of figuring you may be able to catch onto the numbering scheme that was used. Bear in mind that you may run into a situation where a 25 pair feeds an area and there is a splice block in the ceiling with a bunch of 4 pairs running back to it. Also, one big mistake I always see is that a customer will tone out and identify the jacks going in a given pattern around the office area and labeling them 1, 2,3 as they find them, and then wind up with an MDF that goes 7,9,12,24,58.. You may want to lable the main wiring field first and then put that identification on the jack; that way your main wiring field is in order and you are not hunting all over to find a jack location at the main closet.