hi !
yes, in the iris main folder the files INSTALL and README contain tipps, and see
http://www.iris2.de/index.php/Building_From_Source
as well.
you will have to compile iris from sources, there is no binary distribution there yet.
as for uo : installing might not be neccessary, iris only needs the datafiles, so just unpacking should be enough.
if that doesn't work, maybe you can install using wine.
i suggest using uo : mondains legacy, available from
http://www.uo.com/uoml/downloads.shtml
which contains all the needed files.
if you can, please update uo to the newest version, if thats impossible and iris gives you errors like
"map1.mul" not found, you can try creating a symbolik link from map1.mul to map0.mul , as well as staidx1.mul to staidx0.mul and statics1.mul to statics0.mul
thats a bit ugly but haven't gotten to implement an autodection for that yet, and these files are new in a recent uo update.
good luck !