Hi,sunny
Shamrock Hotel is next to Jordan Hotel. To get from the hotel to victoria Peak, take MTR from Jordan station to Central Station and then walk until you reach the lower peak tram terminus, then take tram up there.
From the hotel to the Avnuen of stars, you can just walk or take a taxi, that won't be far. Grab a tour map when you are in Hong Kong at the airport and you will know the details.