How can I recover my bootcamp partition?

Hello, I lost my bootcamp partition when I got to Mavericks. (I just upgraded to 10.10 thinking it would help but I was wrong) have notice that this has been a common problem once I entered this community and was hoping you guys could help. Bestbuy didn't help because they told me I had to format my whole drive which is short for "I honestly do not know how to help you so I'll format your laptop with a few clicks here and there and then you'll pay me $80." Nope. I know the drive is not lost and still works because I can go in and pull out files by going to Computer. Thing is that it doesn't show when I press Option during booting up. If anyone can and is willing, I ask help from the mighty Apple Gods!

I also read up on some terminal commands and thought this could help give more details.

sudo gpt -r -vv show disk0

WARNING: Improper use of the sudo command could lead to data loss

or the deletion of important system files. Please double-check your

typing when using sudo. Type "man sudo" for more information.

To proceed, enter your password, or type Ctrl-C to abort.

Password:

gpt show: disk0: mediasize=500107862016; sectorsize=512; blocks=976773168

gpt show: disk0: Suspicious MBR at sector 0

gpt show: disk0: Pri GPT at sector 1

gpt show: disk0: Sec GPT at sector 976773167

start size index contents

0 1 MBR

1 1 Pri GPT header

2 32 Pri GPT table

34 6

40 409600 1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B

409640 814786736 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC

815196376 1269544 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

816465920 160307200 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

976773120 15

976773135 32 Sec GPT table

976773167 1 Sec GPT header