Ok it's safe to say that the BETA client is up and working with 1 problem. It downloads the cache but doesn't extract it. Extract it by doing:
1. Open Start menu
2. Click Computer
3. Open C:/ drive
4. Open "spiritualist-cache" folder
5. Right click Cache.zip and click extract here
When you extract it make sure that there's more than 1 folder, if there's 1 folder move everything inside that 1 folder to where cache.zip is. ENJOY!
LINK
https://spiritualist.forumotion.com/h1-webclient