For those of you not living close to EMW's office, you can reprogram JB and Wifi module on your own. You need to get a FTDI cable (eg. http://emotorwerks.com/products/online-store/product/show/68-ftdi-programming-cable-for-arduino-juicebox/related_product-171" onclick="window.open(this.href);return false; or any other place) and install Arduino SW on your PC (see the JB installation manual).
I had similar problem with my base JB w/ WIFI. My board version is 8.9. Here are the steps I took.
1. Connect the FTDI cable and start Arduino programmer SW.
2. Using the "serial monitor" to check the existing FW version. If your FW is too old, consider downloading the the latest one for your board from http://emotorwerks.com/JuiceBox_Public/" onclick="window.open(this.href);return false;
3. Before DLing, check the file size. If it's >600KB, it contains all the libraries, so just DL it. If it's really small like 20KB, you need to DL it and the closest previous version which is > 600KB.
4. Unzip the files and copy and overwrite the libraries to Arduino's library directory (see the JB installation manual).
5. Open the FW file JB_firmware_V8_xx_x.ino from Arduino programmer. I was able to flash the V8.10.x FW onto my V8.9 board by commenting out the line //#define V810. Now compile and upload and wait for "Done uploading". You can use the "serial monitor" to check if everything was ok.
6. Open the file JB_WiFi_programmer_Public.ino (under JB_firmware_V8_xx_x\JB_LIBS\JB_WiFi_programmer_Public) from Arduino programmer.
7. Edit the lines mySSID[]="xxxx" and myPWD[]="xxxx" to match your WiFi security settings. Save, compile and upload. If you don't change these two line, you will need to use the WPS buttons later to pair.
8. After "Done uploading", open the "serial monitor" to check the results. It should say "successful". You can also check your router's DHCP table to see that "WiFly" is registered.
9. Redo step 5 to re-upload the FW and reinitialize the board.
10. Use "serial monitor" to check the JB_ID.
11. If all works, you can access your charging data from http://emotorwerks.com/cgi-bin/JuiceBox/JB_data.pl?ID=xxxxxxx&timeunit=10" onclick="window.open(this.href);return false; where xxxxxx is your JB_ID.
12. If you didn't edit the mySSID/myPWD lines, you need to pair your Wifi using the WPS button now. But I found it not quite reliable, unless they are really close.