as for re sizing your photos, camera or phone, for future pictures make it easier for yourself, go into camera settings and lower the picture resolution, set that as default, you can take some test pictures to check the quaility, lowering the resolution, makes them computer friendly,
as for those pictures already taken, have you got PHOTOBUCKET, if not, download it, its free, you can resize pictures there
become a forum donator, £5 yearly, and you can upload pictures directly from your computer