Welcome Pekka! Take your time and read as many of the discussions here as you wish. There is a wealth of information here.
A word of advise: This forum is like the rest of the world - some people are very busy, some aren't, some people actually have knowledge to share, some don't. Your task is to decide which person is what kind.
Try not to be discouraged if your question is not answered immediately because it's possible no-one understands the question or has an answer. Or maybe your question was lost behind the remainder of questions that are posted each day. Wait a couple of days and ask the question again.