Native HTC messaging MMS fix (collaboration)

[kjhadfield]

i have a question that relates to htc messaging; but not directly related to the trying to fix the sprint send issue.
i receive a mms threw the htc tab but un able to download due to the size limit. i have it set at the highest at 1024 but the size is bigger so when i hit download it just errors out overlimit. where in the reg. do i need to increase this size so im able to download? i have sprint w/ juicy r6 w/ htc messaging enabled and only installed the valkrie cab. the setting are already set up. i just cant download cause of the limit.
thanks for any help on pin pointing the right reg key to change and also for the involvement on trying to get sprint to send succesful