If you want to upload Steemit profile pictures. Then you have to go to the settings of the steem settings first. Then click the My Profile Picture. Then enter your picture link in the profile picture. Then upload it.
But if you want to get a picture link from "Tinypic.com" this website. First, you need to register at "Tinypic.com" and visit this website. "Tinypic.com"
then you have to upload the photo. The picture you want to give your profile picture. Then, you have found a 4 link, you choose the last one "Direct Link For the Layout" and submit your profile link, going down and clicking on the update, your picture will be saved in the profile.