Questions about H1B visa?

I have some questions on the H1B visa. My agency is saying because I have a bachelors degree in Behavioural Psychology they do have some jobs available in mental health that require a bachelors degree and we can apply for the H1B visa. I am sceptical from all I have read here.

I am worried what happens if the H1B visa is denied I am currently on F1 status and that would result in me having no visa and having to go home right?

Also if I do get an H1B visa they are only temporary for 3-6 years can I apply for the EB3 visa while on the H1B visa so I can switch visas to a permenant green card later?

Also I keep seeing it written that the wait for an EB3 visa is going to be "several years" I am not familiar with that term and to me that means it will be at least 7 years till I get my visa is that what "several" means? I know their is not an exact time frame for getting a visa but I was thinking it was going to be average 2-3 years not 7!!!

Has anyone any other info about my specific questions on F1 being cancelled if my H1B is denied? And also what "several years" means in the usa?

hi everybody...
please help me
this is their message for me...
" On 27th June 2008 we sent you employment contract and also sent a separate set of 14 documents for your visa and job process and you were required to send those documents to our New York Office with all requirements by DHL or FedEx courier service. Since then you are made several promises of sending your documents with all requirements but as of today you have not sent your requirements. This speaks of your non-serious attitude and during this whole period 52 days you have not given due attention to this job offer. There are dozens of nurses from your country appointed in June 2008 who have already got their visa approval under FAST TRACK EMPLOYMENT & VISA PROCESS program that we have launched in view of retrogression and backlog work. We complete this visa process in three months and had you sent you documents on 28th June 2008 then by now you were very nearly reaching your job place in September end.

If you still interested in this job and want us to process your visa under shortest possible time then you send your complete documents with signed contract and with financial commitment bank draft of 2,000 USD to our New York Office by DHL or FedEx courier service. From the date of receiving your documents with all requirements including 2,000 USD bank draft (as security deposit financial commitment) we can assure you that your visa with work authorization will be arranged in three (3) months time from that day"


please enlighten me maam suzanne and maam silverdragon..
i am so confused...