If you want/can, use the current trunk, otherwise wait for the next release:
I've added a possibility to tell the engine to not resolve paths relative to the
swf, but the html instead, by passing the value ":html:" via the basePath FlashVAR.
I.e. you'd put basePath : ":html:" to the list of passed variables (same block
where the xmlPath goes).
// Edit: realized this is the 1.x section. Are you using 1.x? In that case, you'll have to
do some change to the sources rebuild the engine yourself. Look for the getAbsPath
function in the MegaZine class, and change it to always return the given url parameter.