do you have access to a laptop or desktop?
if so, that makes it easy as pie, but takes a few steps.
First take screenshot,
2nd connect the USB cable and wait a bit, then copy the Screenshot from Phone/Pictures/Screenshots to your PC.
use the PC browser to find this thread, click on REPLY, look down at the bottom of that editor and click on ADVANCED.
now scroll down to where it says Manage Attachments
a new window opens, now click on ADD Files
new window opens, now click on Select Files
now find the screenshot you want.... I rename it so I can find it again, and also so that the uploaded file retains that new name......... makes it a lot easier tomorrow when you want to use that same attachment again.
now click on Upload File.... that window disappears.... now the previous window has a buttom on the lower right labeled DONE.... click that.
If you are happy with what you have typed, click on SUBMIT, and this is what happens next, see the screenshot that comes up here. I just did this step by step for you to get it precisely correct.
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