[Beginners Guide] is need to be updated

1. Chapter 2, Figure 2.2

It is old welcome screen now we have it with only one button

2. 2.2 JBoss Central, Figure 2.5

It is an old screen shot of JBoss Central

3. 2.3 JBoss Application Server, Figure 2.8

It is an old screen shot

4. Chapter 3. 3.1 Visual Web Tool, Figure 3.2

It is an old screen shot