inStep trailer coupler doesnt fit my bike.
 

I just purchased and InStep trailer for my daughter so my wife and I can go riding and take her with us. Well The coupler that mounts with the skewer mount the trailer doesnt fit on my bike. Since my bike has carbon seat stays the dropouts are only flat enough for the skewer to fit. On my wifes bike it would work fine but the trailer is suppose to be my handicap :). I ghetto rigged it with a U nut and such so it will work fine for not but my wife doesnt like it as a permanent solution. Is there a place i can order better alternative mount for the InStep trailer. Instep doesnt sell anything on their site. I saw that a few people here used InStep trailers. Has anyone else ran into this problem? Thanks.