Need help modifying modrewrite rule for image to html page redirection

I have this bit of code that needs to be modified. The idea is as follows:

someone links directly to one of 5,300 images on a site (all jpg files). The site returns just the image. I'd like the site to redirect that request to a shtml  file with the same name as the jpg file. So if the file images123.jpg is requested it will give them images123.shtml.

The catch is that the files are all over the place with regards to folders/directories. There are some 400 different directories. The code I have here is hard coded to one directory.  So I need it modified to use the requested directory. The shtml and jpgs are all in the same folders.

Here's the code:

###Display html page for image if only image is requested
RewriteCond      %{HTTP_REFERER} !^$                              
RewriteCond      %{HTTP_REFERER}  !^*\.www.jeffsheliphiles\.com$
RewriteCond      %{REQUEST_URI}  ^*\.www.jeffsheliphiles\.com/images/$
RewriteRule      ^/images(.*).jpg     /html/$1.shtml

Thanks!!!  I put the points at 500 not because it's necessarily hard, but I need an answer quick!!  Also- I am not going to award points until I've tested this live!! So please be patient while I test your answer(s)!!!
digitalwavIT Infrastructure ManagerAsked:
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How does the directory structure look like ?? I want to know weather the depth is constant or not.

But this should work file

RewriteRule ^/images/(.*)\.jpg$ /html/$1.shtml

digitalwavIT Infrastructure ManagerAuthor Commented:
all the files are /helimg/model or /helimg/model/thumb

the posted rule should be OK.

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digitalwavIT Infrastructure ManagerAuthor Commented:
do I need to change anything in the line you've provided?
I don't know your real paths or path prefixes. so maybe that
You mentioned that « the shtml and jpgs are all in the same folders », so I assume that you actually want

/helimg/model/blah.jpg -> /helimg/model/blah.shtml
/helimg/model/thumb/blah_again.jpg -> /helimg/model/thumb/blah_again.shtml

Correct ? In which case, I would try something like this :

RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^*$ [NC]
RewriteRule ^/helimg/model/(.*)\.jpg$ /helimg/model/$1.shtml

digitalwavIT Infrastructure ManagerAuthor Commented:
_nn_ --The "model" folder/directory is a variable, there are 200+ variations of it.  Can that be passed to the rule? Otherwise I think you have what I'm after.
Well then, let's just remove the model part :

RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^*$ [NC]
RewriteRule ^/helimg/(.*)\.jpg$ /helimg/$1.shtml

An if it's all over the site, then :

RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^*$ [NC]
RewriteRule ^/(.*)\.jpg$ /$1.shtml

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digitalwavIT Infrastructure ManagerAuthor Commented:
Perfect right off the bat. And the great thing is that it works for any image or only the ones in the defined directory!

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