You have to create a free account on Patreon and follow creators to download some creations. For example, access https://www.patreon.com/posts/129085384 - you can find the 'Join for Free' button on the right side. Click join for free and create your free account using your email, Google, Facebook or your Apple account.
Clicking 'Join for Free', Patreon will redirect you to a page to select a plan or to the page where you can find the 'Download' button or the 'Attachments' to download your files. In case you see the page to select a plan, click the 'Go back' button in your browser to return to the page where you can find the download buttons, or return to the creation's page on SimsFinds and click 'Download' again.
Scroll down the page and read the description to find a download button or try to find the 'Attachments' as you can see on image bellow.
If you do not find a download button or the 'Attachments' list, probably the creation is locked for paying members. Please report Paid creations clicking 'Not Free'.
All creations are reviewed before we publish them on SimsFinds. Creators usually lock them for paying members later and we are not able to detect changes. We ask you and other users to report Paid creations clicking 'Not Free'.