You're lucky then, Blu. Since all the pics off my digital camera are waaaay over Dogster's 50k/300x300 limit, I always have to re-size them. Dogster tries to re-size them but is generally unsuccessful, and I have to do it myself. Maybe the OP is unfamiliar with how to re-size?
Just a hint, for those who may not know. If you're having problems uploading pics to Dogster, try using the right mouse button and click on the picture you're trying to upload. You will see the properties, not only image size (so big x so big) but the actual size of the file.
You may find that it is too large and you need to resize it to meet the requirements.