Anyway, after uploading my first photo, I wanted to make sure it appeared when searching. But no matter how detailed searches I made, the photo refused to appear in the search results. After some googling I found this in the Flickr FAQ:
If your account is new, first you need to upload at least 5 photos. After that minimum has been reached, then it shouldn't take more than a few days until your photos appear in searches, groups, etc.5 photos uploaded now, hope to see them appear soon.