QUESTION REGARDING THE PHOTOS

[reena]

I know that when you upload pictures, there is and upload for a regular sized picture and a picture of a thumbnail. Do i need to upload 2 of the same pictures but in different sizes onto my server? How can I make sure that the pictures are at the ok size?

[RoadDogg]

You should resize your big photo by your wishes. It depens on the purpose of you Gallery. The thumbnail can you create automatically via your controll panel. The size ist adjustable an by default 100*75px

[V@no]

there is a mod "Auto resizer on upload", u might want consider use it. without that mod your visitors will not be able upload images larger then the max width/height set in the settings.
The thumbnail is an optional, u dont have to upload it and if your server has GD, ImageMagick or NetPBM installed, then u can use these graphic modules to create thumbnails and resize images