The LGPT quick start guide and official manual are hosted on a wiki. But first you should go through those videos. They will explain you quickly how to get a grip with the software. If you want you can also go to the vimeo account and download them there. There are about 11 episodes planned so far, so watch out this space for new material !
If you're still confused watching those, the best place to ask questions is the LGPT mailing list. The list is also good for bug reports, finding experimental/unstable ghetto builds, and getting in on compos.
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