Might I suggest you locate a Windows XP Forum for information on this? The image shown in the screenshot is obviously from a slipstreamed Windows XP installer, and this IS a Windows 7 forum.
You'll have far more success finding out how to customize a Windows XP Slipstream install in a Windows XP forum.
I just have one question, though. WHY whould you want to customize the Windows XP Installer Image? You see it for like 30 minutes or less, and then never again. Not unless you're into installing junk that kills the XP installation and you need to re-install every couple of days.
It's really not worth your time, because XP itself is dead, and belongs in the history books, nowhere else.
My Computer
At a glance
Windows 7 Professional 32-bit SP1AMD A4/A63.00GB EDOVMware SVGA 3D
But if it is downloaded (that must be either a rapidshare or a torrent download) , I strongly recommend to not use it. Such customized OS downloads (pre-activated and with bundled paid apps) always contain spy programs. If you use such a downloaded OS, you are a ready victim of schemer. So please beware .
My Computer
At a glance
Microsoft Windows 10 Pro Insider Preview 64-bitIntel(R) Core(TM) i3-4130 CPU @ 3.40GHzCorsair Vengence 4GB x2 (8.00GB Dual-Channel ...2047MB GeForce GTS 450 (ZOTAC International)