Tool coming along just a bit stuck

This is my first time of using PackageIO and i need a bit of help please


this game is for Koa


this is what im getting



+ this is my current code

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Code:

Imports PackageIO
Public Class Form1
	Dim FilePath As String
	Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
		Dim Open As New OpenFileDialog
		Open.Title = "Open An Xbox 360 Gamesave"
		Open.ShowDialog()
		FilePath = Open.FileName
		ReadFile()
	End Sub
	Private Sub ReadFile()
		Dim Reader As New PackageIO.Reader(FilePath, PackageIO.Endian.Little)
		Reader.Position = &HF3E83
		TextBox1.Text = Reader.ReadSingle
		Reader.Position = &H81924
		TextBox3.Text = Reader.ReadSingle
	End Sub
	Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
		Dim Writer As New PackageIO.Writer(FilePath, PackageIO.Endian.Little)
		Writer.Position = &HF3E83
		Writer.WriteSingle(TextBox2.Text)
		Writer.Position = &H81924
		Writer.WriteSingle(TextBox4.Text)
		MsgBox("Gamesave successfully modded!")
	End Sub

End Class