I've used PS 5.5 for years and when I make a thumb of an image so that Rendo will accept for upload, all was easy.  Just resize the image with 200 pixels max.  Usually it is around 26K and if I slide the quality from 12 to about 10 or 8 at the most it comes in under 15k for a thumbnail upload.

Now in CS3, the 200x200 file is double that size and taking it to 0 on the slider still doesn't get me under 15K. 

I've tried baseline standard, baseline optimized and progressive. 

Is CS3 just not as efficient or is there something else I should be doing?

Attached Link: Optimizing JPEG Images for the Web with the Save for Web dialog in Adobe Photoshop CS3, CS4, and CS5

When saving images to upload to a website it is probably better to go to File -> Save for Web. You will see different optimization options there too and you shouldn't have any problems getting the file size you need.

Ah, that worked.  Its a few extra steps but a lot better than closing down CS3 and opening PS5.5.  I vaguely remember that screen in PS6 which I pretty much never use any more.

Thanks so much for pointing this out.

You are very welcome. I am pleased you got it working.

please help, i,m trying to get an image down to 15k without in looking all choppy and small to view on renerosity i did it before and cant for the life of me figure out how i did it. i whent to Save for Web and a new window shows up and after that im stuck

Quote - please help, i,m trying to get an image down to 15k without in looking all choppy and small to view on renerosity i did it before and cant for the life of me figure out how i did it. i whent to Save for Web and a new window shows up and after that im stuck

 

Save for web does open a new window. You then have options to resize the image pixel dimensions and also you can use the quality slider to get your file size to a precise amount.
Use the 2 up view to see the before and after effect of your changes before saving the image.