I've done some test with it and have written some tips in a powerpoint althought it was a long time ago.
If I remember correctly to make this work you need to name your application widgets, you need to make some screens that would bootstrap/clean up data in your tests and call those screens first. I remember that making ajax tests was also a bit difficult because you needed to wait.
You need to install JRE in your server.
For the process to work you also need to make sure you fix the tests ASAP otherwise tests will just become a pain in the process.
I haven't updated the Selenium IDE in a long time also, if you figure out how to do it let me know so I can update that solution.
Let me know if you need any more specific help.