Sorry, hit post before I was done answering.
All Campagnolo chainsets have the axle attached, and use the same chainset whether it is an English or Italian or a press-fit bottom bracket. All you need is the correct bottom bracket, a long 10mm hex, the Campag bottom bracket tool, and some 222 (purple) Locktite and you should be set to install it.
Post some pictures when you're done.