just a thought, your not getting much activity because your limiting what trucks can be run, and not having a set time for the show to take place, i mean seriously this fun run has been up for over 2 weeks, and only 2 people signed up
check out this forum topic, may help you http://sim-monsters.com/index.php?/topic/7195-grave-digger-flare-not-found/?hl=%2Bgrave+%2Bdigger+%2Bflare
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on a few parts i could never find some of the vet members helped me out by sending the file to me through aim, if you have aim whats your name and i can send you the missing file
your missing a part for whatever truck your trying to load, in this instance its grave digger red flare most of the time if your missing a part for a truck it can be found in other trucks most of the time on the page you downloaded the truck from the creator notes if you need other things first, like a sound pack or tires, etc..sometimes though you just gota find the part