The link I provided is just EB Alexander, I haven't tried the mini mod pack. Check the mini mod pack thread in the Unofficial mods forum for where to install that.

I just checked the download link for Alexander EB, you will need to open it with winrar or something similar. You won't be able to simply extract it into your folder as the file name is wrong, so double click on Rome - Total War when it opens then move the two files inside into your Alexander folder.