You have the option to download from http://s5.yamsftp.net and http://yamsonline.com . To use your favourite download manager program such as DAP: please follow this guide: http://www.speedbit.com/dap-help/browser-integration/
Once the integration is done ( ensure to restart your browser and DAP) eventual restart computer if you dont know how to kill DAP from task manager. 

Then simply right click on the url file and u will have a new option called "Download Using Dap"

Similar guide is available for other Download manager tools. 

here is a video guide: https://www.youtube.com/watch?v=LXMV3uKtaZU