Magento – How to get Product Target Path programmatically in product edit page

Not sure if this helps or not but I think i had a similar problem...

find the system created URL rewrite for the category tree you have created

change the redirect to Permanent 301

before you save copy the target path...

Then create a custom URL rewrite placing the copied target path into the custom url rewrite request path.

Update your new target path to where you want the category link to go. (My example goes to a CMS page with a URL key of "dry-eye") I believe this should stop the indexing affecting the link as you technically don't change any of the system rewrite info, instead you add a new rewrite that will apply after the system one.

I could be completely misunderstanding your question though :/

For showing image into edit form, you want to render the image.

Replace your addField to below

$fieldset->addField('image', 'image', array(
    'label'    => Mage::helper('catalog')->__('Image'),
    'required' => false, // Make true if required field
    'name'     => 'image',
    'renderer' => 'employee/adminhtml_employee_renderer_image',         
));

Here as you can see we have specified an renderer block type as employee/adminhtml_employee_renderer_image. Now we need to create this Block. The code inside this block is as follows:

<?php
class Namespace_Employee_Block_Adminhtml_Employee_Renderer_Image extends Mage_Adminhtml_Block_Widget_Grid_Column_Renderer_Abstract
{
    public function render(Varien_Object $row)
    {
        $imageName = $row->getAfterImage(); 
        $imagePath = Mage::getBaseUrl("media").$imageName;                 

        $io = new Varien_Io_File();
        if ($io->fileExists($imagePath) && !empty($imageName)) {           
            return "<img width='50px' height='50px' src='".$imagePath."' />"; 
        } else {
            return ""; 
        }
    }
}