Hello again! :)
I have yes, and I like it a lot however I am looking to have login part too, not just the password input as I feel it gives a more professional look and feel to the site, and it may also make the client experience a bit more personal. I am not looking for them to register as I would email them specific login details. I think having a login/password section in the menu, like on the indexhibit site looks good! i have just learned how to create a download link (which was a lot easier than I expected!), i just need to figure out the login bit now :)