BOOTCAMP partition not showing up on Mac OSX after resize

I have a 2007 20" iMac with a 320GB hard disk, 36GB of which was assigned to a Windows Bootcamp partition. I used the Disk Utility in El Capitan to decrease the size of the Mac partition to allow more space on the Windows partition but after I did that, the Boot Camp partition was no longer available. I tried various approaches to rectify this issue from a couple of different forums but have just succeeded in making things worse. I couldn't boot into the Mac Recovery partition so I removed that and now the Bootcamp partition is not even visible in Disk Utility:

This is what I get with a couple of the Disk Utility commands:

imac:~ scott$ sudo gpt -vv -r show /dev/disk0

Password:

gpt show: /dev/disk0: mediasize=320072933376; sectorsize=512; blocks=625142448

gpt show: /dev/disk0: PMBR at sector 0

gpt show: /dev/disk0: Pri GPT at sector 1

gpt show: /dev/disk0: Sec GPT at sector 625142447

start size index contents

0 1 PMBR

1 1 Pri GPT header

2 32 Pri GPT table

34 6

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

409640 624470624 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC

624880264 262151

625142415 32 Sec GPT table

625142447 1 Sec GPT header

imac:~ scott$ sudo fdisk /dev/disk0

Disk: /dev/disk0 geometry: 38913/255/63 [625142448 sectors]

Signature: 0xAA55

Starting Ending

#: id cyl hd sec - cyl hd sec [ start - size]

------------------------------------------------------------------------

1: EE 1023 254 63 - 1023 254 63 [ 1 - 625142447] <Unknown ID>

2: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

3: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

4: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

Is there any way to recover my Windows partition or have I messed it up too much? I'm getting a new Mac next week and was hoping to backup and restore both the Mac and Windows partitions.