Manual download for purchased ipod touch firmware update?

Question

I'm in the Army National Guard, and I deployed a couple of months ago. My internet connection is extremely slow, and typically cuts out for at least a few minutes every hour. I purchased a firmware update for my ipod touch, but the update times out every single time I attempt to download it within iTunes.
Is there any way to get a link to manually download the update? I have a download manager on my computer that can handle the slow link and frequent loss of internet.

Answer 1

Thanks for the response. I now have a slightly more serious problem, though, which I doubt can be helped, but I figure I may as well ask anyway. Here goes:
I was looking for a program to extract my music off the ipod to make a backup as you suggest. (Back before I had an iPod touch, I used yamipod, but that doesn't have touch / iPhone support.)
One that looked promising was called Sharepod, so I downloaded it, and launched it. It told me that I shouldn't run both iTunes and sharepod simultaneously, so I closed iTunes. Then it told me that it didn't detect any iPod, so I should re-open iTunes with the iPod connected, then restart Sharepod.
When I opened iTunes back up, it told me that it couldn't read the data on the iPod, and that I should do a factory reset to fix the problem. (This of course will erase the data.)
So now I'm pretty much stuck. I can't get iTunes to read my iPod, and as long as it can't, neither can sharepod. The only way I can get iTunes to see the iPod is to wipe the data, which is what I downloaded sharepod to prevent in the first place. In the meantime, the iPod works just fine, I just can't sync/update it until I wipe it, which I would like to avoid. Do you know of any way I could possibly fix this error without losing my data? I've rebooted both the iPod and the computer, and even re-installed iTunes, but no luck.
Any help is much appreciated.