A few years ago TT came out with a 64 bit version that's suppose to handle larger websites 50 to a 100 pages or more. You could always split up your site with sub-sites. Easier to handle and edit. Here's some other programs if you have not looked at them. Website X5 has a great page manager and some very large sites online. Coffee Cup bombs after 50 pages. WYSIWYG web builder might work and has Mac and linux versions. Xara web designer may also slow down after 50 pages. Also check out Rocket cake, it's the smallest file (cleanest code) to upload and has Mac also. After looking at your sites Website x5 or web builder may be the best. Check them all.