The first step when you are having trouble is to read the documentation, it has information about installation, configuration and functionalities.
There is also a FAQ and a tutorial about plugin implementation.
If you could not solve your problem with the documentation help, its time to ask at the forum.
Use the search utility to find previous posts related to the issue. If there isn’t any, create a new thread stating as concisely as possible your problem and give the most information so that we can reproduce it.
Remember that the community is composed by users like you, so be polite and try to help as well.