RoorKonn 

Here's a link to Netherworks site check their store for the morph kits svdl mentioned:
www.thenetherworks.com . I believe that DAZ3D also has a similar set of magnets for V4, but Netherworks covers most of the major Poser figures with various sets.

DAZ3D also sells the Tailor.

PhilC sells as program calle Wardrode Wizard at www.Philc.net that does similar work as the Tailor (in a lot of ways better, in others not as good depending on who you talk to, but it has the real advantage of being a Python based plug-in for poser.

ERC/JCM isn't an app, it's a technique used to hack the Poser Cr2 rigging file. To quote svdl the best information for it is at "After you have created the morphs the shirt will still not automatically match Aiko's pose. If you want that to happen, you'll have to put in ERC (Enhanced Remote Control). There's a good tutorial on ERC on nerd3D's site (www.nerd3d.com)"

Unfortunately BL Render's book is in paper, but I still highly recommed you get a copy. For years it was the Bible for character creation in Poser, and it's still covers the subject in more depth than any other.

Check Phil's site listed above for info on his CD tutorial. It was one of the first purchases I made and really taught me the basics of making Poser content. It's be updated continuously since then and has  lads of more information than the original I bought. Can;t recommend any other source higher.

Good luck,
mike