Which logo did you change? the .png if you did then that's incorrect, there's a logo called habbologo_whiteR and habbologo_blackR.gif you need to replace both of those.
Yes, it is possible. You go to the rooms table find out what model you have, go to room_models table go to the room you have, then set the x-y coords to 0? I believe, Haven't made a custom room model in awhile so i'm not certain of this but it's worth testing.
That's not the problem, and as a member of devbest I should help users out by telling them the rules, this isn't spam selection so that's a infraction right there. Get enough and you'll be banned, go read the rules.
No need to post that, waste of time and you'll get an infraction depending on which moderator views this thread.
If you're too lazy to release work why make it in the first place. All you had to do was post download links and a screenshot
Add that to your furnidata in your swf folder.
ndd Anyone else, don't be a dumbass. You can change it if you want to be able to sit on it or make it a solid.. Just change that then it's no pillow it's a dino