As you go through the first temple (forest), you will gather more and more monkeys.
beat gandadorf
is it the 1 in the desert
You find it after defeating the mini-boss in the Goron Mines (2nd dungeon)
you don't.
no
I'm not sure what you're asking ,but Zelda isn't the real Twilight Princess ,Midna is.
there is no horse
Beat the first three levels. Forest Temple, Goron Mines, and Lakebed Temple.
http://faqs.ign.com/articles/747/747818p1.HTML this has everything you need to know about where to find the bugs. if the link does not work, just type in "golden insects in legend of Zelda twilight princess" and it will be there.
the only monkeys are in the first dungeon, so you won't have to worry about them for the rest of the game.
collect all the monkeys then defeat the flower boss
she is royaltly