Yeah not a browser issue.
For the sake of testing though, they don't load in IE, Chrome, Firefox or on an Android tablet also running Chrome and Firefox.
Looks like whatever account 'slimjim' uploaded these pics to has since expired, been moved or deleted on his photobucket etc. Guide was made just over 4 years ago.
-Just also checked his progress thread amongst other posts, all his image links are dead.
New pics needed