The current 'released' DriverPack Mass Storage driver pack included in E2B+DPMS is rather old. If want a more recent driver pack, you can download the most recent one from the last post on the forum here (search for TechDud posts and '7z downloads).
There is a problem with the latest current 'nightly' build DP_MassStorage_wnt5_x86-32_1403071.7z
It would not work when installing XP on a Z87 chipset (Intel Series 8) mainboard.
I have modified the INI file, and you can download the new DPMS version from here.
Just unzip it to the \_ISO\e2b\grub\DPMS folder of your E2B drive (if you already have a \_ISO\e2b\grub\DPMS\DriverPack.ini file then delete it and the whole D folder first).
Note: You need at least E2B v1.31 for the new driver pack to work.
E2B v1.32 will have better DPMS driver selection (thanks to chenall who has modified the chkpci utility for me). If your ISO has '2k' or '2k3' in the filename, it will assume it is a Win2k or Win2k3 driver and look for the correct driver. If not, chkpci will only retrieve XP drivers from the DriverPack.ini file.
For XP installs, this means that whereas previously you may have been presented with a choice of several different mass storage drivers for your system (some of which could be Win2K3 orWin2K drivers), now you should only get one driver (for each different type of controller in your system).