Has your Minecraft crashed when trying out the mod? Well here're two things which might make it not work:
- Make sure you have a recent and stable version of Minecraft Forge 1.8
- A lot of mods interfere with it, so try uninstalling them!
If it crashes, the best way to report it is:
- Say what happened when it crashed (E.G. you clicked "..." and it crashed)
- It really helps when you send the crash log, although don't put it in a forums post, create a http://pastebin.com document and paste the logs in there.
- Give details of things such as whether you're on Mac, Windows or a different system, and what Forge version etc...
Another thing to try is to attempt what you were doing beforehand, and if it still crashes the same way, then ask for help on it.
If you see other people posting threads about it crashing which relate to / happened the same way as you, then why not go to that thread and comment to agree and make the problem more noticed instead of creating another thread for it?
Also, be warned: The replay mod is still under development, so it does crash a fair bit. Therefore, be sure to save any camera paths, or save a replay, before trying anything new on it.
I hope this has helped you! :)