ok, you have received some good advice, and some comments that I think people assumed things they should not. Now, as far as importing children's clothing to sell, it can be done, and done so cheaply without smuggling. I did NOT see the word 'smuggling' come up in your OP, and for the life of me can not understand how that would have been assumed by the wording of your OP. the duty on the clothing is very cheap and can be sold for a nice amount. Say you buy a child's outfit for 7.50 in the states, you can take it over the border, pay a small duty on it, and sell it in Monclova for around 12.00USD. Your profit would be a comfortable on. you have to take your gas driving back and forth, and duties into consideration.
Restaurants seem to be doing very well in Monclova, as you saw when we were there on a research trip recently. If you will leave your money in investments here, and move ONLY what you need to Mexico as you need it, you will find that you will not lose money that way. I thought we had discussed this already. Keep all statements, as you will need them to prove you can support yourself as stated previously by another poster.
As for the CD ROM you are working on, your target market is NOT Mexico. what Mexican child needs to learn Spanish?! Your target market is here in the U.S. where pirating software is not only against the federal law, but can be pursued in the courts here for a substantial amount of money of which you will never see, but you will make your point when all is said and done. You could go out on a limb, and write. possibly childrens books? target the U.S. for your main market.
There have been other businesses we have discussed, all doing well in Monclova. You will do ok, and you need to stop worrying. you are going to have to go, make the best of it, and make it work. Listen to what Antonio, Luis, and others are telling you, and you will do fine.