Note: This was posted in the above-referenced download thread, but I wanted to share here as well (for the Sony Reader user's benefit). Thanks!
Cool beans! Man, this lil' proggy worked great for the scanlations I was able to find and take it for a test-drive with!
I ended up using this program to stitch all the pages together and then ran the resultant PDF through yet another awesome prog, PDFRasterfarian. This was a quite painless operation and yielded a very readable manga book for my afternoon viewing. In case you're wondering, JECC yeilded a ~26MB PDF (which opened fine and viewed nicely), but I wanted to see how PDFR worked on it as well (actually loaded both results on my Reader to compare side-by-side); this result was a ~12MB LRF that looked awesome. In the past, I've used PDFR on other PDF ebooks that didn't display very well, and knew that it works well, so I decided to team them up.
IMO, the result of both progs were exceptional, though PDFR made the book easier to read due to sharpening and removing of residual ghosting from the original scan. Don't get me wrong, JECC works great as is; I was just testing and wanted a smaller size file (the dimensions for both were the same, so I don't think any resizing needed to be done since JECC already does that) and thoroughly enjoyed the results.
Thanks for the great app, truly unlocking the Reader's potential (or at least mine!). Here's to your karma!