Thai [Pattaya?] photography service to load my slides to computer/internet ?

How many slides do yuo want to upload?

It might be worth looking for your own scanner.

I used to have a Canon FS2710.

http://www.canon.co.uk/for_home/product_finder/scanners/dedicated_film_scanners/fs2710/index.asp

It did an excellent job for slides and film.

The sw would cope with negatives that the shops just could not print properly.