Yeah, about that 45 second thing on Crosswinds - they always had that rule, but in the past, if you wanted to upload multimedia files longer than 45 seconds, you had to get their approval first so they know you aren't uploading illegal MP3's or music videos or whatever. However, too many warez sites (I'd consider illegal MP3's and videos a type of warez, so it probably includes them too) tried uploading that stuff anyway, and it nearly increased their bandwidth costs beyond what they could afford between the time they did so and the time they were caught. Also, they apparently lost long time staff member Lenny, so they're now down to just five employees, and with 1.4 million members, they can't spend their time approving files and checking members' directories, so they simply had no choice but to ban "non sample length" media from free sites (they do let premium members upload that stuff without approval though, because they can trust paying members not to abuse their service - after all, why would anyone want to lose money?).
And yes, they still are accepting sign-ups for free accounts (they just have to be approved first, again, due to warez abuse).
Also, yes, although they are slower than normal, they're at least faster than they were last year at this time (they got rid of the warez idiots, so they were able to lift their bandwidth limits, and they say that when they get more paid members, their server speeds will go back to what they were in 2000, and they'll even get rid of pop-ups, since they make CW so little money it's not funny, but right now, every penny counts).