So let's say that I've bought some GOXcoins but I don't have a gox account.
I've requested a withraval of those coins through the site to a regular address but says it hasn't happen yet. When they process it manualy I guess GOX withraval problems will still be around. What happens to those coins?
"regular address" means an adress outside ox? you can not withdraw to there, only to a gox address
see faq:
https://www.bitcoinbuilder.com/faq.html