Skins...

[drcatj18]

Do I Need The Skins? Where Do I place Them? What Is The Difference If I Dont Use Them?

[dlanor]

Do I Need The Skins?

No.

Where Do I place Them?

That depends on the application each skin is intended for. Some even need the skin to be inserted into the application itself by a special program (eg: HDLoader needs this done by hdl_patch), while others can take a normal jpg stored anywhere, as long as you configure the program to use that picture file (eg: uLaunchELF).

What Is The Difference If I Dont Use Them?

You obviously don't get to see them then. That's all.
Programs will still work the same though, each with its own default appearance.

Personally I prefer a visible difference between programs, so I use unrelated skins for them, but that is a matter of taste.

Best regards: dlanor

[drcatj18]

is it possible to create my own skins if some use justa jpg

[JNABK]

Each app uses different image formats, while some share the same.

uLaunchELF uses .jpg
SMS uses .smi
HDL uses .bmp

so you just need to read a skinning tutorial on the app and then make your skin as you see fit.

uLaunchELF skinning
HD Loader skinning
USB Advance skinning
SMS skinning Just down the page a bit is some info on skinning.

[drcatj18]

Thank You!