Alright, my curiosity got the best of me. I tethered my pc so I could test the sendspace link. It worked fine for me.
Now, I understand that some people will have a problem w/ certain sites because of firewalls and router settings and things like that. If that's the case, I can't help you. All I can do is provide you w/ alternate links to try. Or, you could do like I did and tether w/ PDANet and download it that way.
If firewalls/routers aren't your issue, I did put together a little tutorial for downloading from Sendspace.
But let me first say this...
If my Sendspace tutorial helps you and you're able to download the file where you couldn't do so before,
STOP EVERYTHING NOW!!!
If your issue was corrected by looking at my tutorial and you needed help just to get that done, you're in
WAY OVER YOUR HEAD w/ trying to root a phone.
You're currently on a fast track to brick your device. Call Sprint immediately and tell them you need to switch to an iPhone and never, ever, ever consider trying to jailbreak that phone either.
With that said, here's my Sendspace tutorial -
