[raymo]

O.K. Billy. The tube that your eyepieces slide into is screwed into a flat plate. The plate is secured to the focuser by two chrome knobs on the side of the open end of the focuser. Loosen them and remove the flat plate and tube as one item. Put the large collar[2" eyepiece holder]
into where you removed the flat plate from. Bevelled end of the holder goes into the focuser. and tighten the two chrome screws. You can now slide a 2" diameter eyepiece into the open end of the holder, and nip up the small knob on the side of the holder to stop the eyepiece from falling out.
Fitting a DSLR camera requires a T-ring for your brand of camera. Remove lens from camera. Remove flat plate and tube as earlier
described. Unscrew the tube from the flat plate. Fit the T-ring to
the camera as you would a lens. Screw the flat plate onto the T- ring.
Insert the flat plate back into the focuser and nip up the two knobs.
The camera is now firmly attached to the scope.
Eyepieces commonly come in 1.25" diameter [your size] and 2" diam.
2" EPs have a wider field of view. It's difficult to help you remove the stuck camera without a close up pic or two.
The 2" EP holder is just that, nothing to do with cameras.
raymo