Need help with finding lines

ok but how do i find the line? note pad dosnt show you line numbers and if i search with CTRL+F line: 1529 nothing will show

That is where intelligence and experience comes into play. A lot of it, at the beginning, is done by looking at a vanilla version of the client from last patch and comparing where you placed the codes last patch into this patch. Use one of the mod selectors, they come with everything you need (vanilla copy of the game, + the code lines).

After that, its all up to you. Each of us have our own little tricks (or tools) to update each patch that makes it faster. Now is where you get to develop your own.

If you're using line numbers for an old client, decompile the old client, look at where the line number is supposed to be added. Then find that same spot in the new client and you'll have your new line number.
Use notepad++ instead of just notepad as it makes it easier to work with line numbers. If you use windows, use astrogrep to quickly search for things inside the decompiled flash code. When you're looking for the same spot in the new code as the old code, you need to search for unique things that only show up in file you're working with. Programs like astrogrep make that easy.
For many hacks, there's more to update than just a line number.
I suggest you look up some more tutorials until you have a better understanding of how to do it.