You can find it at
ftp://ftp.ea.com/pub/ea/patches/nfs-underground/pc/
There is an ...Patch4.RTP files that is some bytes larger than the one we have donwloaded from the other ftp-server (see other NFSU thread) some weeks ago.
This patch is also available as EXE, so you don't need the DEViANCE RTP-Patcher or the Startmenü-Entry by NFSU.
I curently downloading a crack for that patch. Don't know if its Fixed EXE or NoCD. Will post it here when the download is ready.
At this time i can't check if this update change the version number to V1.4, because i'm not at home. The "old" Patch4 wasn't changing the version to V1.4 .