Subversion and Eclipse
Subversion plug-in for Eclipse:
When you get the Eclipse IDE from www.eclipse.org, it only comes with CVS support, and not Subversion support. You need to get the Subversion plug-in for Eclipse. Just follow the instructions found here. If, after installation, you wonder how to check out a project from the SVN repository, look at step 12 of the instructions again.
Eclipse and JSP:
Remember how Eclipse did not support intellisense (automatically displaying the fields and methods of classes/object/interfaces) in JSP? Well, Eclipse 3.1 and 3.1.1 now support it. Make sure you install the Web Tools Platform (wtp 0.7.1, if I remember correctly).
Writing a Subversion plug-in for Impresario:
There’s already a Java high-level binding for Subversion, called JavaHL. It can be found at here.
The current stable package is svn-win32-1.2.3_javahl.zip.