grill install problem

I just bought a Grille-Tech lower grill for my 98 civic sedan, but I can't for the life of me figure out how to put it on. I know that you wrap the plastic ties around the old grill but since I can only get to the grill in front it's impossible to wrap the plstic ties around the new and old grill. What am I doing wrong? Do I need to take something off? Please help!