Here is the generic solution I use:
Mind Thrust (Metacreativity) 1
Uses the rules as is, but remove the Psionic Combat DC Modifiers. You roll 1d20 + your INT modifier to set the DC and the target takes 1d2 int damage if you succeed. Allows for Power resistance.
Ego Whip (Psychoportation) 2
Uses the rules, drop the Psionic Combat DC modifiers. You roll 1d20 + Dex modifier to set the DC and the target takes 1d4 Dex damage. Allows for power resistance.
ID Insinuation (Psychometabolism) 2
Uses the rules, drop the Psionic Combat DC modifiers. You roll 1d20 + Str modifier to set the DC and the target takes 1d2 Strength damage on a successful strike. This attack doesn't allow for power resistance.
Psychic Crush (Clarisentience) 3
Uses the rules, drop Psionic Combat DC modifiers. You roll 1d20 + Wis modifier to set the DC and the target takes 2d4 wisdom damage on a failed save, temporary of course. This attack allows for power resistance.
Mind Blast (Telepathy) 5
DC is set as 1d20+Charisma Modifier +4. Allows for power resistance, and always stuns, never does ability damage.
As for defense modes, it's a little bit trickier and I never dealt with it. Basically in order to make up for the weakness you cause, you should give them additional powers to choose from.
Both classes should get 3 more 1st level powers, 3 more 3rd level powers, and 3 more 2nd level powers, and one additional 5th level power.
Level (bonus power)
1st - Additional 1st level power
2nd - Additional 1st level power
3rd - Additional 2nd level power
4th - Additional 1st level power
5th - Additional 2nd level power
6th - Additional 3rd level power
7th - Additional 2nd level power
8th - Additional 3rd level power
9th - Additional 3rd level power
13th - Additional 5th level power
I know it throws the flow off... but then again there are always better ways of doing thigns. If I had more interest in psionics I'd do my own conversion to correct some of the innate flaws I feal are there, but I really don't want to spend the time...