I don't believe there's any form of solution guide (be it a walkthrough, a publicly-released set of official replays, or Lets Plays) for NepsterLems yet. I think IchoTolot uploaded his solution replays in the NepsterLems topic, though.
Rather than look up a solution to the level, have you considered skipping it for now and coming back to it later? You can navigate between levels by pressing Left and Right on the preview screen. Not all packs allow you to access a level without completing the previous one, but most packs (including NepsterLems, I believe) do.