Rather than searching for unverified "free" downloads which may carry security risks, you should look for legitimate bundles often provided for free with various EDIUS versions or from reputable third-party developers. Official EDIUS Bundles: proDAD Vitascene:
Light leaks or smoke effects that transition between two clips using the "Track Matte" or "Alpha Map" functions. Compatibility Across Versions edius effects alpha pack 5 6 7 8 free download