How to get the Memory address that saves selected baits' ID?

I have no experience in making Plugins，but a few years of that in C# Coding.Earlier I was trying to use a fishing profile by y2krazy,but it always stucks at the pleace where trying to select baits.I read the thread and find that ExMatt said there is somthing wrong in his fishing Plugin,It just cannont run with chinese client.I read the code of his fishing Plugin and find somthing like this

Code:

			public static uint SelectedBaitItemId
			{
				get
				{
					return Core.Memory.Read<uint>(Core.Memory.ImageBase + 0x01042828);
				}
			}

So I think the Memory address that used to save the id of selected baits maybe changed during localization and makes this method cannont return the correct Item id.So,how and where could I get the Memory address that saves the selected baits' ID?
Thx~