Are you sure there are the same? The have the same date and size, but the 2 files have different data. There are few differences between Alderon and Aderoem (except angle for certain polygons, ...)
i was one more on your homepage and i see the words "...in near future, we will export fullytextured tracks..." i was on your page and i found the file "modell-arcade-max32.zip i opened it in 3dsmax and i found out that it is a fully textured file. it's great!
p.s. does it would give more of this files in near future?