altho i've been a member for almost a year, i've just started trying to be more active the last few weeks. don't worry about what you ask. i was the same, thinking some things i wanted info on these guys would think i was an idiot if i asked. but everybody has been very open, very helpful and really gone out of their way to help.
plus if you spend some time reading back, you'll find a lot of what you think are first time questions, someone'* already asked so its not new and definitely not stupid. from what i've read, these guys may tease you a bit, but they are always willing to help!