diff --git a/src/calibre/devices/prst1/driver.py b/src/calibre/devices/prst1/driver.py
index 327334aaec..ca8e2ae435 100644
--- a/src/calibre/devices/prst1/driver.py
+++ b/src/calibre/devices/prst1/driver.py
@@ -265,7 +265,7 @@ class PRST1(USBMS):
                 values (?,?,?,?,?,?,?,?,?,0,0)
                 '''
                 t = (title, author, source_id, int(time.time() * 1000),
-                        calendar.timegm(book.datetime), lpath,
+                        int(calendar.timegm(book.datetime) * 1000), lpath,
                         os.path.basename(book.lpath), book.size, book.mime)
                 cursor.execute(query, t)
                 book.bookId = cursor.lastrowid
@@ -278,7 +278,7 @@ class PRST1(USBMS):
                 SET title = ?, author = ?, modified_date = ?, file_size = ?
                 WHERE file_path = ?
                 '''
-                t = (title, author, calendar.timegm(book.datetime), book.size,
+                t = (title, author, int(calendar.timegm(book.datetime) * 1000), book.size,
                         lpath)
                 cursor.execute(query, t)
                 book.bookId = db_books[lpath]
@@ -337,9 +337,9 @@ class PRST1(USBMS):
                     db_books[row[0]] = row[1]
 
                 for idx, book in enumerate(books):
+                    if collection not in book.device_collections:
+                        book.device_collections.append(collection)
                     if db_books.get(book.lpath, None) is None:
-                        if collection not in book.device_collections:
-                            book.device_collections.append(collection)
                         query = '''
                         INSERT INTO collections (collection_id, content_id,
                         added_order) values (?,?,?)
@@ -403,6 +403,38 @@ class PRST1(USBMS):
 
         debug_print('PRS-T1: finished rebuild_collections')
 
+    def upload_cover(self, path, filename, metadata, filepath):
+        debug_print('PRS-T1: uploading cover')
+    
+        if filepath.startswith(self._main_prefix):
+            prefix = self._main_prefix
+            source_id = 0
+        else:
+            prefix = self._card_a_prefix
+            source_id = 1
+        
+        metadata.lpath = filepath.partition(prefix)[2]
+        dbpath = self.normalize_path(prefix + DBPATH)
+        debug_print("SQLite DB Path: " + dbpath)
+
+        with closing(sqlite.connect(dbpath)) as connection: 
+            cursor = connection.cursor()
+        
+            query = 'SELECT _id FROM books WHERE file_path = ?'
+            t = (metadata.lpath,)
+            cursor.execute(query, t)
+            
+            for i, row in enumerate(cursor):
+                metadata.bookId = row[0]
+            
+            cursor.close()
+            
+            if metadata.bookId is not None:
+                debug_print('PRS-T1: refreshing cover for book being sent')
+                self.upload_book_cover(connection, metadata, source_id)
+                
+        debug_print('PRS-T1: done uploading cover')
+
     def upload_book_cover(self, connection, book, source_id):
         debug_print('PRST1: Uploading/Refreshing Cover for ' + book.title)
         if not book.thumbnail and book.thumbnail[-1]:
@@ -424,4 +456,5 @@ class PRST1(USBMS):
         t = (thumbnail_path, book.bookId,)
         cursor.execute(query, t)
 
+        connection.commit()
         cursor.close()