Gail,
If you want to switch to emails it will be easier and I'll help you all I can. We can stay here too if you want.
To fix the case, you take out the machine, 4 screws, then peal back or remove the fabric covering. Figure out where each piece goes then get some glue, I use Elmer's Carpenters Wood glue, and piece each part back where it came off of. I used lots of clamps to hold it together while the glue dried and I also use the barbed panneling nails to help. Them things hold good and won't back out.
As for the machine, brush out the lint and debris, clean off the excess old oil then re-oil. I use Tri-Flow to get the old oil flushed out of the linkage, shafts, bearings, and for the initial test runs. It's great stuff.
Joe