Problems Posting Pics: Need Help

I've been trying like crazy to post my pics. But says I have to large file size or wrong MIMI type. What pic. programs are you folks using. I'm using photoshop cs2. I have tried jpeg and gif, as well as file sizes as low as 1.89k.
Have not tried bmp yet. Any suggestions would be worth a of white widow ~ I'll email it to you (lol).

i use MS Paint

Humm i use The Gimp to resize the pics in jpeg format 800x800 and so far so good..are u checking the height and the width of the pics...it´s not only the file size that counts its also the size of the image...so lets say that u´re trying to post a low definition pic that´s only 300kb file size but it´s 1024x768 as pic size u wont be able to upload it cause the maximum allowed is 800x800...

Well this may help the other unsophisticated computer dummies out there like myself but I just took a pic with cellphone and sent it to my email and then moved it to a folder and then uploaded from that folder to rollitup.
Necessity is the mother of invention, as they say... it may be crude but I got the job done.

Yeah It took me a minute to figure it out too. With my camera I have to resize my pics by 50%. My camera broke so I use my buddies camera but his is a lot better than mine and I have to resize it to 25% of the original.