Glad you got it working!

 Hi Thomos,

Hope, that you found it useful.
2 methods for findIteration are implemented.
One for look at all iterations. Second look at a given set of iterations.

/
      Find an iteration with a specific name
     
      @param iProjectAreaHandle
                 - the project area handle
      @param lookFor
                 - the name of the iteration
      @return
      @throws TeamRepositoryException
     */
    private IIteration findIteration(IProjectAreaHandle iProjectAreaHandle, String lookFor)
            throws TeamRepositoryException {
        IProjectArea projectArea = (IProjectArea) mRepository.itemManager().fetchCompleteItem(
                iProjectAreaHandle, IItemManager.REFRESH, mMonitor);
        return findIterationInAllDevelopmentLines(projectArea, lookFor);
    }

    /
      Find an iteration in all development lines.
     
      @param projectArea
                 - the project area
      @param planedFor
                 - the target iteration
      @return a development line found or null.
      @throws TeamRepositoryException
     /
    private IIteration findIterationInAllDevelopmentLines(IProjectArea projectArea, String planedFor)
            throws TeamRepositoryException {
        IDevelopmentLineHandle[] developmentLineHandles = projectArea.getDevelopmentLines();
        for (IDevelopmentLineHandle developmentLineHandle : developmentLineHandles) {
            IDevelopmentLine developmentLine = mAuditableClient.resolveAuditable(
                    developmentLineHandle, ItemProfile.DEVELOPMENT_LINE_DEFAULT, mMonitor);

            IIteration targetIteration = findIteration(developmentLine.getIterations(), planedFor);
            if (targetIteration != null) {
                return targetIteration;
            }
        }
        return null;
    }

    /
      Find an iteration with a specific name recursively
     
      @param iterations
                 an array of iteration
      @param planeFor
                 - the target iteration
      @return - the iteration if found or null
      @throws TeamRepositoryException
     /
    private IIteration findIteration(IIterationHandle[] iterations, String planeFor)
            throws TeamRepositoryException {

        for (IIterationHandle iIterationHandle : iterations) {

            IIteration iteration = mAuditableClient.resolveAuditable(iIterationHandle,
                    ItemProfile.ITERATION_DEFAULT, mMonitor);
            String compare = iteration.getName();

            // base case 1: found iteration
            if (planeFor.equals(compare)) {
                return iteration;
            }

            // recursive step: look in children iterations
            IIterationHandle[] iterationHandlers = iteration.getChildren();
            if (iterationHandlers != null) {

                IIteration found = findIteration(iteration.getChildren(), planeFor);
                if (found != null) {
                    return found;
                }
            }
        }

        // no iteration found
        return null;
    }