The crawling of the pages could take a few days, to a few weeks. Example:
http://www.google.com/search?hl=en&l... oksandniches
That link lists all your existing pages that where crawled by Google. If you see 99% of them are MonsterCommerce pages. There are some (just a few) Volusion pages. The only 3dC page right now i think its the home page. We need to give google a chance to spider through all, but as you can see, it can take a bit. We have 3 things you should take advantage of:
1) Google sitemap xml builder
2) Product page index
3) Category page index
2 & 3 are pages you can link of from say the very bottom of your page which link to a page that has every single product (and every single category in the category page index), so that a spider like Google can easily go through all the pages. If you don't link to these, the spidering process may take a little longer, as spiders will generally only go so deep before quitting. (Note that they will probably come back and resume next time, but this means that the job could take 2-3 rounds, instead of 1 if you give it a nicely formatted link list).
Let's see what happens in the next month or so, i would hope all those old Monster/Volusion URLS are removed and replaced with the new ones, but that's all up to Google , hopefully it likes you and comes back to see you often.