yup that is right, the original rtw is nowhere near 1021 pixels wide.

im modding a mod which uses a map which is "as big as can be made" according to the mod guides, not a pixle larger.

i just find it coincidental that this size corrseponds exactly with the dimensions found in this file.

As i mentioned this text file wasnt included in the mod i downloaded so this file is unchanged from standard rtw.