I can tell you how I do mine, then you can decide if that works for you, assuming you want it to be a thread on Xweb with accompanying photos. I write up my post on Word first, then edit and refine it until I am happy with it. Then I upload all of the photos I want to use to my Photobucket account, which is free for a fair amount of storage. The thing I like about Photobucket (and this may hold true for other photo storage sites) is that the picture that appears in your post is nice and large instead of a tiny thumbnail that you have to click on, like Imageshack. I find it really annoying to have to keep clicking on tiny thumbnails to follow the pictures in a post, plus having to put up with all of the soft core porn ads that come with them.
If you have all of the photos in one directory on your computer, you can point Photobucket to that directory and it will upload all of them at once. Make sure you have created a library in Photobucket first, if you want them all to be in one place and not mixed up with your other photos.
Then I go through my narrative in Word and find where I want to insert a picture. Find that picture in your Photobucket library and click on it. It will appear by itself with four types of links shown to the right. Choose the bottom one called "IMG". Click on that and it will put the link on your clipboard. Go back to your Word document and put the cursor where you want the picture and hit Ctrl V to paste the link right there. It will not show the picture, just the link.
Once you have all the photo links where you want them, then you can create a new thread in Xweb, go back to Word and hit Ctrl A to select the entire document, hit Ctrl C to copy everything, then go back to Xweb and hit Ctrl V and the whole document will be there, links all active. The only thing I find it does not do, is put in the breaks between paragraphs, so I have to go through the post and manually put them in. There may be a way to get them to transfer from Word, but I haven't figured that one out yet.
Hit Preview Post and it should all appear with all of the photos nicely displayed where you want them. Double check it, add in any Smilies you like, or links to websites or other threads using the tools on the toolbar, then publish it.
I am sure there are other ways to do it, but this is what I figured out for my long posts.