Logo issue & Photos

Hi there , first of all thank you for the theme , its very easy to work around it , very user friendly , really thank you . I am having a problem though uploading the logo … when I upload the logo ( 75×50 in png ) and jpg and different sizes too it wont show up at all no matter what ( the text logo yes but the image one no ) any help is much appriciate it .

– Question : When you make the album page and you show up the thumbnail for each different album you click on it and there they come showing up ( the photos ) straight aways on big resolution without the possibility that the person can chose what photo to see and not go one by one on each one of them ( for example you upload 10 photos on 1 album and if you want to see the 10th one you have to go no matter what from 1 till 9 ) it wont give you the posibility to see them as you wish only as a book cover . Is there anyway to change that ? So users can see what photos they want and also if they want to browse they can also !!!?? Thank you in advance