as i said here is how
file with the ending "5570" to titlepage_bootup.iff (find the 001E4B80 inside that iff and click import and import the dds you downloaded, save afterwards), 001E4B80 to titlepage.iff , 00324C40.dds to titlepage.iff.
So basically open titlepage_bootup.iff with texture editor, find the file named 001E4B80 inside that iff, click import and select the dds you downloaded, same goes for 2 other files.