Should i use Th. GRP Editor (Trans) or no?

It's pretty good, the only thing I don't like is that it tries to stick ".GRP" onto the end of all the filenames.

Well thats fine with me i guess

The translated version is outdated. You should download the version 1.83(Key=45C4NKAE). This is in japanese but it's not hard to figure out the options. By the way, unlike the translated version, this has filters and let you make animations with multiples sprites. Also, it let you load images that doesn't have .grp as extension.

Good to know! If i get aroumd to it ill use google translate to make an updated english version.