I have a few questions about my currently purchased sanyo vpc gh4.?

[Trev V]

I had just bought a vpc gh4 just as said above. To go with the camcorder to film odds and ends shots i bought a 38mm fisheye (wide angle lens). which is far too big for it. i went to a specialist that said (correct me if im wrong) a lens can screw in inside and outside the lens ring thing. the lens came with a 38mm to 34mm step up ring and when it is put on the cam still is too wide for cam with the 34mm. then the specialist took a random guess on the size of the lens ring thingy and he thought i could use a 30.5mm step up lens. after i invested in one it i found out it was too small for the outside on the lens thing on the camcorder yet it was too big for the inside lens ring thing. overall, what im asking is what size step up adapter do i need for the camera to take the lens? and when i put the fisheye near the cameras lens it is very blurry but the specialist said that once i have the right adapter, it will focus. is his statement true? and last of all.. how do you turn on the flashlight on the camera? please do not write any answers that say look in the instruction manual. trust me i've tried. sorry for the inconvenience, but could someone please help me out???