Permissible and impermissible items of trade

Q: I would like to know if its permissible to sell computer based training (e.g. video training for microsoft word etc). It is not software, but videos that teach an individual how to work with that software. However it may have copyrights by an international company. It is not sold in south africa because it is very very expensive eg. R3000 and as you know education is expensive here. My main aim is to sell it to those who can't afford training and to help overcome south africas skills problem by educating people. The price I'll be selling will be close to nothing eg R80. The profit is for my time taken. I would like to know if this is permissible even if I do it without the companies permission. I obtained the material for free. All I'm doing is making copies and distributing it.

Q: Most of my cosmetics contain cetyl alcohol. Cetyl alcohol is used in the cosmetic industry as an opacifier in shampoos, or as an emollient, emulsifier or thickening agent in the manufacture of skin creams and lotions. It is also employed as a lubricant for nuts and bolts. Is it permissible to sell items with this ingredient?

Q: Is it permissible for a pharmacy to sell the following products:

1. Items containing gelatin from animals that were not slaughtered according to Shari’ah?

2. Items containing alcohol which have a non-alcoholic equivalent.

3. Also, will the money earned from such sales be haraam?

Q: At our store we stock a large variety of products including shoe makers products. Recently we have been getting a customer coming regularly to buy shoe glue only. The staff have brought it to our attention that he is buying it to sniff. After this I have observed the following:

1. He does not buy any other shoe makers products.
2. He buys more glue on a single trip then any other shoemaker I remember serving.
3. He never has any shoes or shoe makers items in his hand when he comes to the store whereas this is usually noticed  on most shoemakers.

So it is clear that he is sniffing the glue and not using it for shoes. Is it permissible to continue serving him knowing that he is using the glue for sniffing?

NB: Our store does NOT run on a self help system so he has to ask for the glue to be given to him which makes it very easy for us to stop supplying him if necessary.