Userscripts.org

as of now, the spaces are underscores. can you use 'item_word.replace("_"," ")'? I'll try it on mine. sorry I used a bugmenot login, but this just isn't really my scene.

yeah, it totally works:
these are lines 283-292 of the source

if(langlist[item_lang]){
			if(item_word){
				item.innerHTML = item_word.replace("_"," ") + ' [' + langlist[item_lang] + ']';
				item.title = item_word.replace("_"," ") + ' [' + langlist[item_lang] + ']';
			}
			else{
				item.innerHTML = langlist[item_lang];
				item.title = langlist[item_lang];
			}
		}

so i also changed the format a bit and removed the double calling of replace. Also made it search globally, so that translations longer than two words have the underscores replaced.
these are lines 284-287

if(item_word){
				item.innerHTML = langlist[item_lang] + ': ' + item_word.replace("_"," ");
				item.title = item.innerHTML; //item_word.replace(/_/g," ") + ' [' + langlist[item_lang] + ']';
			}