Are there things that BI have that Alex.exe doesn't, though? I'm reading a few conflicting things. Does EB utilise Shield Wall if you use BI? Alex.exe doesn't have shield wall, does it? Is it that big of a deal? Also, do I need to install RTW, 1.5, EB1.1, 1.2, BI and Alexander in that order, or since I've already installed EB and RTW, can I just install BI and Alexander over it and it'll still work?