yea, that's wrong.

I’m pretty new to this whole thing but i don’t think i did this right.

http://s17.postimage.org/z692xzvm5/Untitled_1.jpg

on account of there are holes in my model after i unwrapped the UV that i didn’t notice until i textured it.

how can i fix this? and what went wrong?
please help.

it’s suppose to be a razor blade.

Just a guess by try going into edit mode select everything (a) and recalculate normals (Ctrl+N). If the normals are flipped in texture mode you can’t see the backside of them (at least not by default).

yup, half the surfaces were facing the wrong way and recalculating worked. ty!