What kind of support are you looking for?  We currently have UI translations 
for the following languages, contributed by folks who speak them (I don't):
  Danish  (DaDK)
  Dutch   (DuNL)
  Finnish (FiFI)
  French  (FrFR)
  German  (DeDE)
  Italian (ItIT)
  Spanish (EsES)
Since 0.7.5, we've also gotten a translation to Norwegian (NoNO).  
Are you offering to provide a translation to Latvian (LvLV)?  If so, grab a 
copy of the sources and see the directions in the following document:
  abi/docs/AbiSource_Localization.abw
Or, if you're wondering how to enable one of the existing translations, see 
the following messages in the email archives for this list:
  http://www.abisource.com/mailinglists/abiword-user/99/August/0080.html
  http://www.abisource.com/mailinglists/abiword-user/99/September/0065.html
It'd be nice to be able to change languages in the GUI, but we haven't yet 
thought through all the issues for how to do this.  If you'd like pointers 
on where to get started hacking on this, let us know.  
Paul