Okay the best tool for both Unit Colors and Square Terrain (Square Terrain is what you wanted ISOM for im guessing). Go here: http://teamse.x-boxnight.com/editors.htm
download StarForge 2.0. This editor is not the best editor but it does a nice job with Unit Colors and square terrain.
Did you install the program or did you just dl? Most times you dl patches off the internet you will still have to install the program by opening up the file that it is in and clicking on the run application icon. You also might have to move the dl files into a certain sc folder so it works with the editor and still get it installed. I am just guessing but that is most likely the problem, but if you want specific instructions you might want to wait for someone that has done it already and can tell you for sure.
ISOM is a pain in the @$$ because the blocks arent perfect, it may take hours to get the square terrain just right. Use Starforge for block terrain im telling you ;p
Finally finding about some of the bots that are flooding the users online - bytespider apparently is a huge offender here - ignores robots.txt and comes in from a ton of different IPs
Ghan has said he has fixed this. Monovertex please confirm this fix. This was only a problem with people that had signatures in the upper levels like not the special members but the respected members.