Very belated welcome back! n_n My laptop's had a fair amount of issues since I bought it, a recent one forced me to revert back to factory settings so I can definitely understand your frustration. >: But it's great to have you here again - stick around and I'm sure you won't regret it! PC's very active and has great members as well as staff, so if you ever need assistance, a moderator (bold blue name) would love to help~
Have fun! Unfortunately I can't really help out with your tileset issue, though that question's probably more suited for the Emulation/Game Dev section or ShinyGold's creator.