First off you want to extract the rar file (password L14M333) with xbins and imgburn in it to your desktop and run xbins.
Now you want to navigate to: Xbox 360>Dashboards> XEXMenu
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Now you want to drag Xexmenu_v1.1-ISO.rar to the left window (by default it is your desktop)
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Once its on your desktop you want to open the .rar up and extract the .iso to your desktop. Now load imgburn up and select Write image file to disk.
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Now drag the .iso into the top left area of the program then click the write button at the bottom of the window

Now your disk should be burning
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Once its burned take the disk and place it in your jtag xbox's disk tray

Now my Jtag no longer has a DVD tray so i cannot use my own pics so i am taking them from this video. If you too dont have a DVD drive Dont panic! just go to the next spoiler where my non DVD drive alternative is.

now select Play game

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Then when the menu below loads press RB to move to the HDD
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Then press X and select DVD on the right to move to the DVD directory
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Now you can see the CODE999 folder

Press Y and select copy on the CODE999 Folder then move back to the HDD1 directory

Then move into Content> 0000000000000000 folder (if the 0000000000000000 folder isn't there make it (use 16 Zeros))

Then press Y and select paste, The XEX menu has now been copied to the directory,

you can now exit to the dashboard, remove the disk, then go to games library and you will see the XEXMenu 1.1 there to play, thats it, your done

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