This might be a stupid question but does anybody know where i can download the virtual midi cable? Also, when i get that how would i set it up in Sibelius 3 with VDL 2? Any help would be greatly appreciated!

Well, if you were to read the user's manual, the answer to both questions is in there.

Page 18 :)

[url=https://www.tapspace.com/vdl2/tutorials/VDL2notationsetup.swf]Here's a visual overview of how things string together as well[/url].