You should download Sideview Utils from Splunkbase. It will make this possible whereas without it you'd have to write a lot of somewhat hairy javascript to bypass the default splunk systems.
You'll want to read about the TextField module, cause that will replace your ExtendedFieldSearch module, and about the Redirector module which will replace your ViewRedirector module.
Most of all, read the section in the app 'General Techniques - linking'. The documentation there will put it all together for you.
The key piece will be having a Redirector module downstream from the Flashchart that looks like this. "your_text_field_name_here" must match whatever 'name' param you decided to give your TextField module, and "your_view_name_here" should just be the name of your view.
<module name="Redirector">
<param name="url">your_view_name_here</param>
<param name="arg.your_text_field_name_here">$click.value$</param>
</module>
I'm skipping over some things, like what role the URLLoader module plays, but read the docs in the app and read through the examples and you'll be fine.
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