slrn and UTF-8 terminal

Hi,
I run slrn in an UTF-8 terminal in Debian Unstable. This is the output
of --version:

Slrn 0.9.8.1pl1 [2005-02-17]
        * Note: This version is a developer preview. It's enhanced
                with an unofficial charset patch, please don't bug
                upstream about it.
S-Lang Library Version: 2.0.6
Compiled at: Feb 11 2007 17:14:26
Operating System: Debian

 COMPILE TIME OPTIONS:
  Backends: +nntp +slrnpull +spool
  External programs / libs: +canlock +inews +ssl +uudeview
  Features: +charset_mapping +decoding +emphasized_text +end_of_thread
    +fake_refs +gen_msgid -grouplens +mime -msgid_cache +piping +rnlock
    +slang +spoilers -strict_from
 DEFAULTS:
  Default server object:     nntp
  Default posting mechanism: nntp
  Default character set:     isolatin
 SUPPORTED CHARACTER SETS:
  isolatin ibm850 ibm852 ibm857 ibm737 NeXT koi8

The problem is that I can't see the following characters: öäå ÖÄÅ èéàòùì.
I assume that it's because utf-8 is not listed amongst the charactes set
in slrn --version.

What can I do about it?

Thank you very much.

-- 
Salvatore Iovene
http://www.iovene.com

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