You don´t have to emaail them to your PC, Joanna, you can download a small photoeditor and do the job on your iPad. Of the ones recommended in the link in my previous posting, I think Photogene sounds like a good option. Photoshop Touch is a much more comprehensive program, and probably have more options than most of you need, unleess you wish to work work with masks and layers etc.
I downloaded Photogene ($ 2.99), just to try it, and it seems to be quite easy.
After you have installed the program and opened it, you choose your photo from your photostream. If you wish to crop the photo, click on Crop, and pull the handles to select the part of the photo you wish to keep. When it has been cropped, click on Export, then on Resize (upper right side). You then choose the reslution, I am choosing 640 here now. Almost at the bottom of the same page, you see Jpeg quality (compression level), with a slider where you choose the level of compression, if you click on Calculate Export Size, you see the file size, then try to move the slider to the left to make the file size smaller, click on Calculate size to check. When you have chosen compression level which gives you the right size (<250 kb), go back to Export and then click on the icon Save to library. Check that the resolution is still set at still 640, if not, go back and select this value again Then you can close the program and you are ready to post on the Forum. You then do exactly the same as you do from your PC, by choosing Additional Options, Attach-Choose file (choose from existing= yourphostream), and choose the one you edited from your photostream.
If my explanation is correct, and I did as I explained, I should have a photo I took with my iPad yesterday here. It was about 807 kb before i cropped it a little, after cropping it was 229.8 kb, which should be OK. I did not have to compress it at all, but left the compression slider at 1.0 (= no compression). Let´s see if this works!
I´m doing this from my iPad, so I´m making lot´s of mistakes.