To make money you need to learn to use the AH(you will need 2 addons - auctionator and auctioneer - im using Auctionator(faster to use).Dont buy anything for 1 week - just analyse prices.You will notice that 1 day reagend "x" will cost 100 g,but 2 days later it will cost 150 g.You need to find the right moment to buy and sell goods.There are many guides for professions,so i wont write anything about them.Also read the posts above - there are many usefull advices.
Good luck guys!
P.p:Simple advice - dont beg for money,use gathering proffs and sell goods(you will get way more gold that way)