If you look at the 2014 System Requirements for Suites here:
You will notice that Windows XP 32 bit is only supported in the Building Design Suite Standard 2014.
What happens if you need AutoCAD 2014 on XP and you own Building Design Suite Premium/Ultimate 2014?
The USB Media and the installers provided are 64 bit only so you will need to download AutoCAD 2014 32 bit via our Virtual Agent (step 3) to install it:
Then use using the correct the Product Key for the Premium or Ultimate Suite to complete the installation.