problem changing npc client 5165

i have aproblem while changing npc or npc dialog or welcome message after i

change the code by c# and i relog i dont find any thing changed

please i need help with this problem

do you debug,'? press f6 and f5

right click your project/ solution in solution explorer. push Rebuild solution.

Run it from %Drive%:\%projectLocation%\bin\Release\%yourprojec t%.exe

:)

Make sure you're building in release mode.

nothing changed is there any pics plz?

when i open my project i see this
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
<PublishUrlHistory />
<InstallUrlHistory />
<SupportUrlHistory />
<UpdateUrlHistory />
<BootstrapperUrlHistory />
<ErrorReportUrlHistory />
<FallbackCulture>en-US</FallbackCulture>
<VerifyUploadedFiles>false</VerifyUploadedFiles>
</PropertyGroup>
</Project>

i was using microsft visual studio 2010 but i found that i should version 2008 but when i try to open project i see this message

(the selected file is asolution file but was created by newer version of this

application and cannot be opened)

my problem now is opening the project can any one help me plz?

okay im having the same trouble i can't debug it. it says error or something, i found config. manager but it isnt highlighted for me to click it, it's shaded, so how do i go into release mode?????? :( helpp

u need microsoft visual c# then find file called newestcoserver.csproj open it u should see visual and on the right solution explorer then change npc build>F6 debugg>F5