Not sure why you're having problems downloading ringtones, but try this.
Point your Blackberry's web browser to
http://www.stylefone.com
Once the page finishes loading scroll down to "ringtones" and activate the link.
Once the page finishes loading scroll down to "Stylefone Polyphonic Ringtones" and activate the link.
Once the page finishes loading scroll down to "H" (or any other letter) and activate the link.
Once the page finishes loading scroll down to "Ringtone" (doesn't matter which one) and activate the link.
Once the page finishes loading scroll down to "Download" (The download button without the winzip icon beside it) and activate the link.
Once the page finishes loading and the music starts playing use the scroll well to select the button on the far right side. This will bring up the menu. Select "Save". Make sure the path is set to "/home/user/ringtones/" and give it whatever file name you want. Then click save.
You'll get a message saying the tune was saved.
Now you need to exit your browser and go to "Home -> Profiles"
Select the profile you wish to change. For example the "default" profile. Press the scroll wheel to bring up the menu and select "Edit"
Scroll down to phone and select Edit by using the scroll wheel.
Scroll down to "Tune" (either one) and press the scroll wheel, and select "Change option"
Select the ringtone you downloaded by selecting its name and pressing the scroll wheel.
Now press the scroll wheel again and select "save"
Congratulations you've now downloaded a ringtone and set it for use.