Need help installing Windows 7? -

Well, I have already downloaded the ISO image from the Microsoft website. It s Build 7000 (Duh what else would it be I mean that s the only build Microsoft posted for official download) I downloaded it on to my Lenovo 3000 J115 Upgraded PC with 250GB HDD but decided that I will just install it on my Gigabyte M912X but found out that the download already finished. SO I connected my computers to my router and set up a network and transfered my files there since my M912X doesn t have a DVD drive and no i m not planning to buy one but I have a usesless DVD Burner with SATA interface which can be useful if I had a SATA to USB cable which I don t have since I don t have any money I m only 13! I have two partitions one for XP one with nothing and installing 7 on it. Back to the question.... I tried installing it the first time it got a install.wim error well that s fine I ll just waste another 30 minutes to transfer install.wim again to sources folder or everything again. Second time I tried it ppassed the install.wim error but it then says corrupted files or installation cannot copy all the necessary files to install Windows and all changes done to your computer will be undone. So I again copied the files into my hard drive but the same problem arised then I copied and pasted the Windows Vista install.wim file and wallah what do you knowit worked..... wait WTF! it didn t it says installatioln cannot continue and the other error 0x7F for unbcl.dll or something like that. Tried it again just right now after copying everything again and the same thing happened cannot copy necessary files to install Windows. It works with the other computer fine welll just tried booting to it and it boots to the DVD on Lenovo PC and goes all the way through installing it without no errors. I don t have a 4GB flash drive just a 2GB flash drive and don t have it right now but if you give me a solution involving using a 2GB or lesser flash drive im fine with that or if I can boot to network ISO or DVD Reader that will be fine too. I also tried installing directly from DVD via network (Share DVD drive) and it eventually failed too. On YouTube(R) I see people installing WIndows on there netbooks in 3 to 10 minutes (I m amazed by how fast it install while retaining more features than Vista and being more faster) installs way faster than XP and Vista together. Vista takes way too long to install and XP nah 20 minutes to an hour to install. I really want Windows 7 please help me here!

You connect computer to laptop or connect the hardisk with cable and copy file or setup the file or just compress that setup and save to flash drive then setup done