Hi
This is my method. I use it to allow myself to quickly change themes
I'll use the Sunny theme as my example.
1. Create a folder under libsource\Netweb called sunny
2. Drop the jquery download zip file into this folder
3. Unzip into a subfolder
4. You are interested in 2 items in the extracted folder:
css\custom-theme\images and
css\custom-theme\jquery-ui.8.nn.custom.css
5. Create a folder under Sunny called Styles and put these 2 items into that folder
6. At this point you should have the following in the Sunny folder
folder called jquery-ui-1.18.nn.custom
folder called Styles with folder images and a jquery.css file
original zipped file from jquery
7 Copy the web folder and gzipall.bat from libsrc\Netweb into the Sunny folder
8. If you haven't got it download gzip.exe from the Internet and put a copy in the Sunny folder
Almost ready to rock 9. Copy the styles folder in Sunny into the web folder in Sunny replacing the existing files
10. Now run gzipall.bat
I normally zip the web folder and call it something like SunnyWeb551.zip to differentiate it from other versions of the Sunny theme and NT version.
To use extract the zip to the folder that is the parent of the web folder that you want to update.
HTH