On this site all the files for download are posted on various file hosting sites. All of them can be downloaded for free with certain restrictions depending on filehosting.
I usually use couple of free mirrors like uploaded, turbobit, depositfiles, rapidgator and zippyshare.
If you are “free user” i do recommend to download from those mirrors, you will have to wait for download and speed will be limited but you will get the files.
Because of amount of files/images to download, archives are necessary. Most of the files are packed in Zip or Rar. Windows can unpack zip but to unpack rar you need program like winrar or FREE 7zip. Sometimes archives can be password protected, if thats the case the password will be posted under download links but it will be something like: hentaixxxmanga or hentaixxxmanga.com
If 10 euro does not seem much for you. I do recommend to buy premium account on uploaded. You will be able to download all files with maximum speed. It’s also great way of supporting this site.