1. download delta patcher https://www.romhacking.net/utilities/704/ <-- link
2. open delta patcher
3. put the data.win of the game into the "Original file" text box, put the delta patch file into the other text box
4. click "apply patch"

now for the language file:
1. go to the "lang" folder where you have pizza tower
2. replace the "english" file with the one in the zip file

Boom you're done now uhh get beat by pizzaface to death i guess