batch watermark photos script in PHOTOSHOP

i need a person to write a script in photoshop that will allow me to BATCH process JPEG files. the files need to be WATERMARKED in the bottom left hand corner of the photo. I already have the LOGO created that needs to watermarked on all of the photos. i already have Photoshop CS3 installed on my computer. i alredy have the photos that need to be watermarked. i need somebody to create a script, plugin, action file, droplet, etc that will allow me to automaticly process an entire folder or series of folders. here is exactly what this script/plugin/action file/droplet should do. 1) rename the photos to the name of the folder 2) add a small watermark to each photo 3) optomize the photos for the web (internet optomized/smaller sized web ready files) many of the files are 3mb and need to be reduced to maybe 200kb. please tell me your experience with photoshop. please make sure your solution works with photoshop CS3 I am ONLY interested in buying your final solution/script. I am not interested in hiring a person to watermark photos, just want the script. i will ESCROW the final bid for this job.