It's not that hard believe me, just carefully read the instructions in the readme
If there are indeed .asi files in the package you'll need an asiloader (dsound.dll or xliveless.dll). Those image files are usually meant to replace default files. The readme should say where to paste what, make sure you backup your files first. If you still can't figure it out pass me a link of where you downloaded the files or make a screenshot of the contents so I can explain it in detail.