Anything in a rar/zip or folder includes the install apk and sd card data files, or the install apk and activation key apk to enable full version.
If you want information on something use appbrain or just put APP NAME + Android in google and you should find what you're looking for.
Kreativ Mobile Series Wallpapers
240x320 | 200 Nos. | JPG | 6.4 MB | RAR
Here it is.. an amazing collection of creative wallpapers for your cool mobile.
iPad Apps and Games Collection + Spirit Jailbreaking Guide and Apps (2011) | 1GB
Spirit Jailbreaking Guide And Apps
Format: mp3 | 128 Kbps | Quantity: 80 | Size: 10.9 mb
HTC Desire HD Ringtones