How to access pc from anywhere with vncviewer ?

Dude if you have already bought the version then you can use it just fine, should tell you how to do it. The FREE version you can not do this from another location. You can only use this on THAT network. Here is a free thing for you to use. Go to logmein.com and sign up for the free account. You have to download the software on the computer you are wanting to view from a different location. Once you do that, you can just log into the website, and access your computer. Pretty simple. If you want to do file transfering you have to upgrade to the pro, but you could always email things to yourself instead. Hope this helps.