Here is the message I am getting:
"Download of the package failed.
Swype is already installed.
Please uninstall and try again."
There is one other way to legit get swype - get a Droid X. Works surprisingly well on mine except for words that aren't in the dictionary. Try entering "yomama" in the market search field (it suggests romans, lol). Then you have to revert to "tap typing". While the example is meant for humor, I find it kind of a pain to have to switch. Not sure I'm going to keep swype as the default because of it. (and no, "yomama" is not typically in my vocabulary.)
you can also run out of swype downloads in the beta program, fyi, from experience...
titanium and bkapps/rstapps never worked right, always left me with swype installed, but it wouldn't swype... so i always had to redownload again, and lo and behold, i just ran out
that page referenced above also says we can email and get our download count reset, so i just tried that
just some more info, for whatever it's worth...