WordPress Plugins for Images, Photographs, and Graphics
Before I offer any tips, let me tell you beforehand, I consider myself to be a WordPress "newbie". I've played with, and used a couple different versions, but mostly just for fun. A while back, I had this grand vision of a website, and started experimenting with many different CMS's (content management systems). I like WordPress a lot, and would recommend it to anybody who wants to put up a great looking blog or smaller site. Personally, I can't understand why anyone would choose Blogger, Blogspot, or even Typepad over WordPress? There are other really good CMS programs, such as Joomla or Drupal, but they have different and/or more advanced functions that most people wouldn't use.
From your request, I'm not sure which plugin you're referring to? And even harder, which version of WordPress have you intalled? I'm guessing (or hoping) that you've got at least v 2.1 onboard, since it came out about 3 years ago. But it would be much easier (for you) if you had at least v 2.5 installed.
Your query, from what I gather, is just to, "locate a plugin for my older WP version." This seems like a great list for you to start with:
Have you read through WordPress.org's wiki pages yet? They call it "the Codex", and it's a great resource for WP users. You might want to start with these two pages:
One paragraph on the second page (above) happened to catch my eye:
" Prerequisite for Uploading Files. In order to use all these tools, you have to change the chmod of wp-content folder to 777. If you have not changed permissions in order to write in wp-content folder, you will not be able to use the uploader. If you do not know how to change this value, please read Changing File Permissions. Remember to reset the folder permissions after the uploads directory has been created inside wp-content. "
There was one other idea I had -- maybe a "workaround" -- if you can't get a plugin to work, and you don't want to upgrade to the latest version of WordPress? ...You could just use one of the standard FTP clients available (nonags' list here) to upload pictures or other files to your hosting server. If you don't already have one installed, I suggest you download FileZilla, and give it a try (it has a 6/6 rating here on NN).
FileZilla, NoNags Description, v. 3.281 (3.88 MB)
FileZilla, Homepage Download, v. 3.32 (3.96 MB)
BUT, the reason I responded, mainly, was to suggest that you reconsider upgrading to the latest version of WordPress. It may be a "pain in the ass", and you could risk losing some data. In the long run though, if your website is important to you, it might be well worth the effort to have it updated. WordPress.org, being a community of free users, is constantly trying to meet everyone's needs. And something as simple as image management has come a very long way in the last 3 years.
Note: If you wait until some time next month (April 2010), version 3.0 should be coming out. In the meantime, you could try the FTP fix I suggested?
If you want to upgrade to the latest version (v. 2.92) now? ...it may not be as hard as you think. First, it's a relatively small download (2.4 MB), and there is some excellent step-by-step documentation at WP.org's site (again, the Codex).
Sorry for my overly opinionated ramblings, but I hope something here helps you.
Robert ...gratia autem Dei, sum id quod sum