Step 1:
Download Subversive from here: http://www.eclipse.org/subversive/downloads.php

Choose a suitable version for your eclipse platform.
Here we download Subversive-incubation-0.7.8.I20090904-1300.zip.
Download Subversive Connector from here: http://community.polarion.com/projects/subversive/download/eclipse/2.0/builds/

Choose the latest stable version or other suitable version.
Here we download Subversive-connectors-2.2.1.I20090925-2100.zip.

Step 2:
Unzip these two zip files and fire up eclipse.
Click Help>Install New Software.
Click Add>Local and select the location of Subversive-incubation folder.

Select all the components from the list and follow the installation guide.
After installation, restart eclipse and repeat it for Subversive Connector.

Step 3:
Configure a SVN server in the eclipse.
Click Window>Show View>Other>SVN>SVN Repositories.
Then in the SVN Repositories view, right click and select New>Repository Location.
Define the SVN repository location information and click Finish.

Then a new repository location is created. Right click it and you can check out it as a local project.
When you are ready to share code with others, you may right click your project and Select Team>Share Project.
When you want to synchronize your local resource with your team members, you may use Team>Update.
When you want to commit your code, you may use Team>Commit.

Step 1:
Download Cygwin setup here: http://www.cygwin.com/setup.exe
Install it according to the following guide:

Recommend to choose a short path and a simple name of the root directory

Choose a location to download the installation file(not necessary be a subfolder of root directory)

Choose a mirror site you like. You may view the mirror site list here: http://cygwin.com/mirrors.html

Expand Devel and select these components (by clicking skip label):
gcc-core: C compiler
gcc-g++: C++ compiler
gdb: The GNU Debugger
make: The GNU version of the make utility

Note: When you choose these components, Cygwin will automatically choose some other dependence for you. Just keep them.

Then it will download these packages and install them. When it completes, click Finish.

Step 2:
Add bin folder in the root directory of Cygwin to the environment variables named path. Either user variable or system variable is fine. In the above example, you should use E:\cygwin\bin.

Step 3:
If you download Eclipse IDE for C/C++ Developers, you may skip Step 3 and directly use it.
Download CDT here: http://www.eclipse.org/cdt/downloads.php
Make sure you select the suitable version for your eclipse.
Installing CDT may differ from its version. Here we use eclipse 3.4.2+CDT 5.0.2.
Unzip CDT zip file into a folder and fire up eclipse.
Click Help>Software Updates and choose Available Software.
Click Add site>Local and select the location of the CDT folder.

You will see the CDT is added to the Available Software list. Choose it and click Install.

Wait until it completes installation and enjoy it after restarting eclipse.