[Ashur]

for images not all encoding accepted if you create a screenshot from MPC it should work!!!

for languages what is your language? also UTF-8 should work however your language files has to be encoded in unicode too !!!!

here is the question what hte heck is your language and what encoding did you use to edit the language files? attach a sample language file and I'll try to figure it out
don't forget that overall header and footer has to be encoded in UTF so everything works properly

here is something else you can do for me, stay in regular english make sure to have language theme in tracker setting setup to UTF-8 in both encoding boxes then try to type in your language on Shoutbox