If the preset file was an .FHP file then you need to place it into Feral Heart >> Presets. You might not be able to see it on another character because it may have a (2), (3) or (4) at the end. For example 'BigBangTheory_5(2)'. Just rename it and get rid of the (2). Or maybe you just haven't restarted FH.
If you have been given a preset folder with all the things needed inside it, such as 'preset_#body', 'preset_#head', 'preset_#tail' [I think you get the idea xD] and the preset material file, then make sure you place it into; Feral Heart >> My_Presets and Replace the other with the one you have just put in there. Also, make sure that everything matches. For example:
material preset_#_bodyMatL
{
technique
{
pass
{
texture_unit
{
texture preset_#body2.png
}
}
}
}
material preset_#_bodyMatR
{
technique
{
pass
{
texture_unit
{
texture preset_#body.png
}
}
}
}
material preset_#_headMatL
{
technique
{
pass
{
texture_unit
{
texture preset_#head.png
}
}
}
}
material preset_#_headMatR
{
technique
{
pass
{
texture_unit
{
texture preset_#head.png
}
}
}
}
material preset_#_eyeMatL
{
technique
{
pass
{
cull_hardware none
cull_software none
texture_unit
{
texture preset_#eye.png
}
}
}
}
material preset_#_eyeMatR
{
technique
{
pass
{
cull_hardware none
cull_software none
texture_unit
{
texture preset_#eye.png
}
}
}
}
material preset_#_tailMat
{
technique
{
pass
{
texture_unit
{
texture preset_#tail.png
}
}
}
}
material preset_#_maneMat
{
technique
{
pass
{
lighting off
cull_hardware none
cull_software none
scene_blend alpha_blend
depth_write off
texture_unit
{
texture preset_#mane.png
}
}
}
}
What I have just shown you is what would be in the material file [# represents the number]. Make sure that ALL the numbers in there match the file number and the .png files inside the folder. Once you have checked that, save the Material file and try again with Preset Maker.
Another reason why you can't see your preset is that it might be saved as a .JPEG/JPG or other. Make sure it is saved as a .PNG other wise, it won't work.