A: Yes. The repack uses the same file structure as the original. Download .big file mods and use FIFA File Explorer 14-15 to import them. Do not use Frosty Mod Manager (it is for later titles).
Downloading and installing the FIFA 15 Ultimate Team Edition Repack by Mr DJ latest version is a straightforward process. Here's a step-by-step guide: Fifa 15 Ultimate Team Edition repack Mr DJ latest version