Welcome to the Org, Jedleh!

You can download the patch from post#1 of this thread, the "Local link" at the bottom is valid. The patch is just a zip file with 2 files inside, button_ipnext.BIF and button_ipprev.BIF. You want to put those 2 files in the campmap\buttons directory of your MTW install (rename the existing ones if you want to keep them around). That's pretty much all you have to do, hopefully it gets you going again!