Wirelessly posted (8800: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0) BlackBerry8310/4.2.2 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/102)
I don't know if you damaged anything else or not, hard to say from here. First, I would let it charge several hours, 4-5. If it won't turn on, pull the battery and replace.
If you continue to get the white screen on boot up, you may need to reload the OS, using JL_cmder if needed, to recognize or see the BlackBerry.
Follow the instructions in the FAQ here: http://www.blackberryfaq.com/index.php/Main_Page
And--congrays on getting it thus far!