if it genuinly does have the pagerank it says, and you point it to a PR0 domain is the pagerank transferred automatically? Second question, if you acquire the name through somehting like snapnames and it automatically getsregistered with your details with some random company can you still point it to an existing domain with a different host (I have never dome it before soi don't really know what im doing) thanks
You will most probably loose money. AFAIK, Google will take your PR away if they detect a whois change. ( This happened to me atleast ) So in next update there won't be PR for this expired -> bought domain.
I don't think that would happen, PR is based on backlinks... so unless people stop linking the the PR would remain. But, you may hit the sandbox and loose search engine results, maybe.
It depends. Most of expired domain are deleted from google as it tracks expired domains. However, some expired domains remain their pagerank but I believe its because the registrar regged it and sold it or so.
but would the pagerank remain until the next update or would it be automaticlly reset oncethe whois data changes,even if it had links?
My opinion - I dont think PR has anything to do with the whois info. If the owner of a site changes doesnt mean Google will reset the PR to 0. As long as the back links remain, the PR wont change. If many back links are to inner pages , and the site is changed , they will break and thus the PR will reduce. If the domain has most of the back links to the home page, then change in ownership of the domain should not have affect on the PR.
If however, the domain expires, and then deleted by the registery, at that point if the domain is re-registered, it takes more time to get indexed and get PR. I registered a domain, not knowing it was previously owned by somebody more then 2 years before me, and it's been 3 months and the site has not been indexed or got PR. Last month, just the homepage was indexed by G.
Tiptop, I've never done anything like this, but I would imaging that PR has nothing to do with whois. If you have the same links pointing to it then it shouldn't be a problem. It would be like someone buying your website, and moving it to another hosting company. I've not heard of PR been lost in these examples.
The SEs tend to delist pages that don't exist and crawl them with less frequency. Your links are still out there somewhere though, so they will be counted again once your site goes back up. Being able to maintain a seamless pagerank is probably a bit tricky and surely requires some luck.