Using Readline System For Richtextbox Info?

im using as usual vb express 2010 right now on winxp, but planning to make the programs fully suported on vista & win7.

First heres my structure on public class:
Structure cartas
Dim numero As Integer

[Code].....

and the richtextbox4.text has paragraphcs or vbnewlines however u wanna call them.

Saving it on a txt file looks like this:
7:John:Marcelo:this is first paragrah[]this is second paragraph[]and this is third

note i use [] to simulate the squareish paragraph thingie that is used in a textfile. since if i try to copy it here, it will automatically convert itself into an actual paragraph.

Anyways when i try to load the file using readline i only get the first paragraph displayed and all the rest of this specific text unexistent.