1. Product name and version?  
CaptainSim 757 Block F V2.0 (PRO PACK)
 
2. Download or a box?  
Download  
 
3. MSFS version?  
FS 9 (English Version)
 
4. MSFS Service Pack version?  
FS 9.1
 
5. What exactly doesn’t work or works wrong? (screenshot required for all graphics related issues)  
Derated climb (both CLB1 and CLB2) doesn't work during climb with VNAV engaged
 
6. When it happens?  
Always.
 
7. How exactly do you think it supposed to work?  
When you click on CLB1 or CLB2 the thrust (EPR) should decrease

8. What is your system? (OS, video card , RAM, CPU, Sound Card)    
Windows XP SP2 | ATI HD3870 | 4GB RAM Corsair DDR3 1333C9DHX | Intel E8400 | Creative X-FI