I've uploaded a video on how I took the International Space Station video here:
https://youtu.be/TkCMMI24bCk
Trying to image an object that's flying overhead at 25,000km/h is always going to pose some challenges.
The LX200GPS mount has a reasonably uncommon capability in terms of being able to track fast moving objects like the ISS given a set of data to describe it's path.
You can download the data from
https://heavens-above.com/
Entering the data in to the handset, follow the instructions here:
http://www.weasner.com/etx/autostar/as_iss.html
Extracting the images from the video file taken with the camera, use PIPP:
https://sites.google.com/site/astropipp/