2 problems – images & pages links

Hi WP Support,
I hope you can help me as I already tried all known to my knowledge. I`m using a theme I change according to my needs and have still 2 big problems:
1, pageslinks: I created on home additional pages (besides Home), like preferences etc. The link is always like: blog.mypage.sk/preferences. I need it to be like: mypage.sk/preferences. I changed permalinks to pretty permalinks too, but this did make no change. I tried 2 PCs with IE, Chrome and Firefox, cant change anywhere. Please, advise where to change the link to what I need and how, which php file etc. Thanks.

2, images: loading of pictures into the multimedia library. I tried .jpg, jpeg, but nothing works. Heres the situation. I tried 2 systems, IE, Firefox and Chrome and tried the new drag & drop system, get an error on Access denied when trying to open stream to file.php and some error on line 348. The file is rws-rws-rw,still error. When I use the standard one, it loads the picture, but dont show the actual picture, I cant edit, crop it or anything else, size is 0x0. The uploads folder is not existing, so I created one, but this picture is not there. When I manually copy them through ftp to this folder, I dont see them in multimedia library.
I can use pictures from web links, but this is not the right way.

Please assist me.
Thank you.
Regards,
Tibor