[quote=Akihisa Yoshii]
I just feel I should mention, Teo, The TARDIS wouldn't be able to move across the universe very quickly at all if the option to travel through time was removed, as that is how it 'fades in' and 'fades out', it moves through the Time Vortex. Plus, extensive time traveling through space the old-fashioned way can damage a TARDIS. Even if that weren't the problem, the only way a TARDIS would not be able to move through the time vortex would be to remove it's 'soul', the heart of the TARDIS, which would effectively kill it. I honestly don't think we should have the TARDIS in the RP because things WILL go wrong... but if you must you could say the TARDIS simply has an attitude and won't let Teo (who seems to be the pilot) travel through time, but will take him to a set destination... if he asks nicely.
[/quote]

Or, we could be simple. Time travel by Tardis only works in the Doctor Who Universe, and outside they simply teleport. Due to Dimensional Rules and stuffs. Also, time travel in the Doctor Who Universe functions according to Doctor Who rules, which basically means I get to make up whatever I feel like applying to the situation.