2001 windstar remote starter

Just purchased 2001 windstar SE. found out by accident that it has remote starter. The keyfob has an 800 number on it for Audiovox so I was able to go to website and found user manual for the remote. The problem is we figured out how to start the van w/ the remote but now it won't start w/ the remote anymore, it tries (radio comes on like key is turned to accessory) but no engine turn over. The van has Securilock passive antitheft system. There is a red toggle switch under the dash which disables the remote start. There is what appears to be a black reset(?) button next to red toggle switch. Does anyone know how this remote start is supposed to work. How do I reset it. We have no problem starting the van w/ the key.