Quote: "how do i apply all the textures to the inside of the sphere?"
To get the texture to show up on the inside of a sphere, I used to scale it on the negative (i.e.: scale object 1,-40,-40,-40). However, when I used my own texture with your code and created a sphere in the code it textured it on the inside without doing that. Perhaps that is something that got updated in DBPro v 7.5. Since I do not have your media, I cannot say if maybe something is amiss with your "ss.x" model. If you want to post your media or email it to me, I can take a look at it.
I don't believe DBPro can load .psd files directly. You should change it to another format.
The code runs lightning fast for me. I would suggest that you control the frames per second manually:
sync on : sync rate 60
load image "media\ss1.dds", 1
load image "media\ss2.dds", 2
load image "media\ss3.dds", 3
load image "media\ss4.dds", 4
load image "media\ss5.dds", 5
load image "media\ss6.dds", 6
load image "media\space station.psd",7
load object "media\ss.x",1
texture object 1,1
scale object 1,40,40,40
set object cull 1,0
position object 1,camera position x(),camera position y(),camera position z()
do
control camera using arrowkeys 0,1,1
if spacekey() = 1 then exit
sync
loop