Iptv stalker for kodi on firestick

Hello, does anyone have a clue how to put the new iptv stalker add on onto the amazon firestick? Im really struggling. Ive had a donation for a few month now and all was fine until the other day when it brings up bad or missing serial number. Ive seen a few posts on here on putting the new version on but A, ive not a clue where to find it, B, ive no idea how i then send it to my firestick, and C, what is a serial number?! Its truly doing my swede in, if anyone can help me it would be appreciated muchly! ( in layman's terms...please...ha)
 
Don't bother with the Stalker client. Go to your PVR Addons and set that up. See instruction in the Stickies. Make sure you fill in random numbers for all the fields under advanced except for token to enable your custom serial number. I believe they all need more then 4 characters.

If you insist on using the Stalker Client, then download 9.0.21, see stickies. The use ADB Fire or Fire TV Utility app to copy the file to the Fire Stick. Probably send it to the download folder. Then do install from zip and brows to the download folder and install it from there. If you have your computer shared on your network, then you could install the zip directly from your computer. When you click on install from zip, your first selection would be Windows SMB network then your computer, then the location where you have the zip.