Ideally, it would be better if the fundraiser set-up the page themselves as they can create their own log-in details and have control of the page. 

However, if you wanted to set-up the page for someone, you can do this but they would need their own personal account so their name appears on the fundraising page. So, register on Givey using the fundraisers own log-in details and then proceed to setting-up their fundraising page.