What do you do to get apps after you get cydia?

I have an ipod touch (not the newest one) and my understanding was that cydia was like the normal app store but everything was free but it doesn't seem that way. The apps that I want such as cloud browse and Bike Race Pro that normally cost money, I can't find in Cydia. My friend told me to get some AppCake thing, which I did but it is an iphone thing and when I went on it originally, whenever I tried to search for something no keypad came up so I couldn't. Now appcake won't even open.

Well you need to have the codes to get some of the stuff but if you search "cydia source codes" on YouTube it will tell you a bunch of them

Try using Vshare. Add this source (by going to "manage" tab in cydia-> sources): http://ihackcydia.myrepospace.com

Then just search for vshare and install it. Also be sure to install Appsync.