Learn software testing?

[Snowjim]

Hey! I have been programing for many years and some of the languages i manage is C/C++, Visual Basic.net, C# etc. Now i have become more interest of testing the software, mainly C code(within telecom). Of course i know how to make simple tests on my own software, but i want to learn how to REALLY test the software. I have already read some about white box, black box, function/unit/module testing and so on, but i feel that i need more information about how it works with testing of C code more practical. Maby you could help me understand this, maby you know of some good articles any help would be appreciate. Some questions: 1. How do i setup the test environment 2. what program can i use? can i do some heavy testing of C code with Visual studio 2005? if so, how? 3. Can i test C code with C# code? Best Regards Snowman