I'm using 3.2.2.BETA4.
My prior selenium tests manipulated the fileUpload component ok, using the following:
<tr> <td>type</td> <td>attachments_addFileForm:attachments_fileupload:file</td> <td>javascript{test_file_upload}</td> </tr> <tr> <td>click</td> <td>//a[contains(text(),'Begin upload...')]</td> <td></td> </tr> <tr> <td>click</td> <td>attachments_CloseLink</td> <td></td> </tr> <tr> <td>waitForElementPresent</td> <td>referral:referralAttachmentTable:0:attachmentType</td> <td></td> </tr>