The a with ring (angstrom) mark, å , is in the HTML standard (iso8859-1) series of 255 characters as 229, so prints in both Netscape and IE. The capital prints with 197.
HOWEVER, what happens to any of these characters after being juggled around in the digital tradition data base (see Joe's posts above), or other data base, is something else.
I can't use the alt key with numbers or letters on my keyboard when I type into the Mudcat box. I get a noisy "ding."