I think you have a great fix for a very frustrating problem.

But..

I wasn’t sure which version of the plugin you are using, I upgraded to 0.99.1 trying to fix this. I would be glad to roll back though.

And Alexes CSS is messing up the code. and copy and paste to dreamweaver isn’t working.

Maybe you can contact me —- spam at grammalei.com —and we can exchange email addresses ??

If not I will try and go through the code and figure out all the mistakes in the copy process.

function import_gallery1and1($galleryfolder) {
// ** $galleryfolder contains relative path

//TODO: Check permission of existing thumb folder & images

global $wpdb;

$created_msg = “”;

// remove trailing slash at the end, if somebody use it
if (substr($galleryfolder, -1) == ‘/’) $galleryfolder = substr($galleryfolder, 0, -1);
$gallerypath = WINABSPATH.$galleryfolder;

if (!is_dir($gallerypath)) {
nggallery::show_error(__(‘Directory’, ‘nggallery’).’ ‘.$gallerypath.’ ‘.__(‘doesn`t exist!’, ‘nggallery’));
return ;
}

// read list of images
$new_imageslist = nggAdmin::scandir($gallerypath);
if (empty($new_imageslist)) {
nggallery::show_message(__(‘Directory’, ‘nggallery’).’ ‘.$gallerypath.’ ‘.__(‘contains no pictures’, ‘nggallery’));
return;
}

// check & create thumbnail folder
if ( !nggallery::get_thumbnail_folder($gallerypath) )
return;

// take folder name as gallery name
$galleryname = basename($galleryfolder);

// check for existing galleryfolder
$gallery_id = $wpdb->get_var(“SELECT gid FROM $wpdb->nggallery WHERE path = ‘$galleryfolder’ “);

if (!$gallery_id) {
$result = $wpdb->query(“INSERT INTO $wpdb->nggallery (name, path) VALUES (‘$galleryname’, ‘$galleryfolder’) “);
if (!$result) {
nggallery::show_error(__(‘Database error. Could not add gallery!’,'nggallery’));
return;
}
$created_msg =__(‘Gallery’,'nggallery’).’ ‘.$galleryname.’ ‘.__(‘successfully created!’,'nggallery’).”;
$gallery_id = $wpdb->insert_id; // get index_id
}

// Look for existing image list
$old_imageslist = $wpdb->get_col(“SELECT filename FROM $wpdb->nggpictures WHERE galleryid = ‘$gallery_id’ “);
// if no images are there, create empty array
if ($old_imageslist == NULL) $old_imageslist = array();
// check difference
$new_images = array_diff($new_imageslist, $old_imageslist);
// now create thumbnails

//nggAdmin::generateThumbnail($gallerypath,$new_images);
//Instead of creating the thumbs, we are just going to check if all images have a thumnb in the thumbs directory. Only images with thumb will be included
$new_thumbslist = nggAdmin::scandir($gallerypath.”/thumbs”);
$new_images = array_intersect($new_images, $new_thumbslist);
//and after compration we need to “create the thumbs files”
foreach($new_images as $thumb) {
//echo “$thumb/n/r”;
rename ( $gallerypath.”/thumbs/”.$thumb, $gallerypath.”/thumbs/thumbs_”.$thumb);
}

// add images to database
$count_pic = nggAdmin::add_Images($gallery_id, $gallerypath, $new_images);

nggallery::show_message($created_msg.$count_pic.__(‘ picture(s) successfully added’,'nggallery’));
return;

}

It makes exactly the same as importgallery but without lunching the creation of thumbs. Instead it checks if there is a thumb already created for each picture you want to import.
b. In the manage.php file (nextgen-gallery/admin/wp25/) you need to add this lines.
Right after the “if (isset ($_POST['scanfolder']))”, in a new if:

if (isset ($_POST['scanfolder1and1'])) {
// scan folder looking for th files and the thumbs…a void producing the thumbs
check_admin_referer(‘ngg_updategallery’);

$gallerypath = $wpdb->get_var(“SELECT path FROM $wpdb->nggallery WHERE gid = ‘$act_gid’ “);
nggAdmin::import_gallery1and1($gallerypath);
}

And a new button to launch the process. After the “Scan Folder for new images”:

<input type=”submit” name=”scanfolder” value=” ” />
<input type=”submit” name=”scanfolder1and1″ value=” ” />

2- Now, basically, we have to upload both pictures and thumbs (in a thumbs folder). Both files must have the same name (pay attention to the extension).
3- You have to create the gallery without uploading any image.
4- Then in “manage” the gallery next to the “Scan Folder for new images” button you will see a “Scan Folder for new images and thumbs” that launches the process.
Note that this is just a patch… I am pretty sure there is a better way of coding this solution (I am not a web developer)…and sure it should be easy to make points 3 and 4 run one after the other by creating a new “Import pictures and thumbs from a folder” in the “new gallery” section.
I am sharing this dummy solution just in case Alex wants to include some patch for 1nd1 users….