I'm not sure what version of SPServices and jQuery you're using, but the .find("z\\:row") syntax won't work with jQuery 1.7+. I also assume that you're passing the webURL correctly? It would help if you could post your code.
M.
I'm not sure what version of SPServices and jQuery you're using, but the .find("z\\:row") syntax won't work with jQuery 1.7+. I also assume that you're passing the webURL correctly? It would help if you could post your code.
M.