Canon Hf200 - my problems with it...I am going crazy! Long

I cannot edit the footage I have or save it on my computor. Forget about plugging the camera into the computor because nothing, absolutly nothing happens.
When I put the sd card in this is what happens:
A window appears - I hit ‘open folders’
Then I hit ‘private’
Then ‘avchd’
Then ‘stream’
Then the icons for the footage I have taken appears.
Since I cannot open anything in the Pixela that came with this camera, I purchased the Sony Vegas which was recommended to read avchd.
So I open Sony Vegas and drag the icons to the line that read video and I can see them play.
My goal would be to save them on Sony but they don’t save…so I cannot do anything with what I have on this card.
On another website I was told there should not be a problem. All I have to do is insert the sd card into the computor and Sony should read it right away…it doesn’t.

I feel like I wasted my money on this camera because its causing me so much grief!

If it were as easy as the Flip video I would be okay but it isn’t at all.

So what do I do? I haven’t used it in a few mos. because I cannot do anything with I have filmed.