Chrome and Firefox should both work. If Chrome is not, my second best guess is you are in the wrong place when you right click.
Go to:
http://www.makehumancommunity.org/clothes.html There is a list of clothes. If you want, for example, the leather vest, click on the word leather vest. Now you are on
http://www.makehumancommunity.org/cloth ... _vest.html. Scroll down and, one by one, RIGHT click on the links to vest.mhclo, vest.obj, vest.mhmat, the optional bump map texture image, and the option bump map image and choose the "save link as..." option to save them. Ultimately put them in a folder you create for that purpose in your data directory.
OR better
go ahead and use the alpha which is incredibly stable for an alpha and use the asset downloader which is meant just exactly to improve the life experience of newbees. You need to sink once and then you will need to know nothing except how to click on the asset of interest.